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If m and n satisfy the equations -2m + 3...

If m and n satisfy the equations -2m + 3n = 8 and 4m +6n = 7 then m=……

A

`17/4`

B

`-11/8`

C

`1/2`

D

`8/3`

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BEYOND PUBLICATION-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES-EXERCISE
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  2. If the equations (2m-1)x+3y-5=0, 3x+(n-1)y-2=0 has Inflnlte number of ...

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  3. If m and n satisfy the equations -2m + 3n = 8 and 4m +6n = 7 then m=…...

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  4. A fraction becomes (9)/(11) if 2 is added to both numerator and denomi...

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  5. The ration of incomes of two persons is 11: 7 and the ration of their ...

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  6. If the ratio of income of two people is 10:7 and their expenditure is ...

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  7. The age of a father 8 years ago was 5 times that of his son 8 years. H...

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  8. Father is 18 years older than son and father age is one extra of four ...

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  9. The two lines 2x-y=1,x+2y=13 will intersect at ………..

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  10. Identity parallel lines

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  11. Solution to 2x+3y=12,2y-1=x is……………

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  12. The lines x-y=1, 2x+y=8 intersect at …………

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  13. If (5)/(x-1)+(1)/(y-2)=2,(6)/(x-1)+(-3)/(y-2)=1 then x=……….

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  14. If 3x + 4y = 25 and 5x - 6y = -9 then y=….

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  15. 2x+3y=1,3x-y=7 then (x,y)=………….

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  16. Raghava went to a 'sale' to purchase some pants and shirts. He purchas...

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  17. Places A and B are 150 km apart on a highway. One car starts from A an...

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  18. Solve the following pair of equations by reducing them to a pair of li...

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  19. Solve each of the following pairs of equations by reducing them to a p...

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  20. The graph of a pair of linear equations such that (a1)/(a2)=(b1)/(b2)n...

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