[ax+by=(a+b)/(2)],[3x+5y=4]

Solve the following system of equations by method of cross-multiplication: ax+by=(a+b)/(2),quad 3x+5y=4

Solve by the elimination method : ax+by=(a+b)/(2) and 3x+5y=4 .

Solve the following system of equations by method of cross-multiplication: a x+b y=(a+b)/2,\ \ \ \ 3x+5y=4

Write each of the following as an equation of the form ax+by+c=0 and write the values of a,b,c in each case. (i) x=-3 (ii) y=5 (iii) 3x=2 (iv) 5y=4

Are the following pair of linear equations consistent ? Justify your answer. (i) -3x - 4y = 12 and 4y + 3x = 12 (ii) (3)/(5)x - y = (1)/(2) and (1)/(5) x - 3y = (1)/(6) (iii) 2ax + by = a and 4ax + 2by - 2a = 0, a, b != 0 (iv) x + 3y = 11 and 2(2x + 6y) = 22

Are the following pair of linear equations consistent ? Justify your answer. (i) -3x - 4y = 12 and 4y + 3x = 12 (ii) (3)/(5)x - y = (1)/(2) and (1)/(5) x - 3y = (1)/(6) (iii) 2ax + by = a and 4ax + 2by - 2a = 0, a, b != 0 (iv) x + 3y = 11 and 2(2x + 6y) = 22

If 4x+5y=83 and (3x)/(2y)=(21)/(22), then y-x=?( a) 3( b) 4 (c) 7 (d) 11

If (a +b, a-b) is the solution of the equations 3x + 2y = 20 and 4x - 5y = 42 , then find the value of b

Form the differential equations by elimniating the arbitary constants from the following equations : (1) y =c^(2)+c/x (2) x^(3) +y^(3) = 4ax (3) y = Ae^(5x) + Be^(-5x) (4) y = A cos alpha x + B sin alpha x