Evaluate : `(7)/(2a+3b)-(5)/(2a-3b)`

Evaluate : ( 2a + 3b ) - ( 2a - 3b )

Evaluate: (a^(7)b^(3))/(a^(5)b)= _________

If (2a+b)/(a+4b)=3, then find the value of (a+b)/(a+2b)*(2)/(7)(b)(5)/(9)(c)(10)/(7)(d)(10)/(9)

Simplify each of the following: -5(a+b)+2(2a-b)+4a-7 -3(a+b)+4(2a-3b)-(2a-b)

If a:b=2:5backslash then the value of (2a+3b):(7a+5b) is 5:3 b.6:5 c.12:5d .30:19

Find the value of : (a) | 3/5 - 2/3 | ( b ) | -5/7 + 1 |

If (15a^(2)+4b^(2))/(15a^(2)-4b^(2))=(47)/(7) then find the values of the following (i) (a)/(b) (ii) (7a-3b)/(7a+3b) (iii) (b^(2)-2a^(2))/(b^(2)+2a^(2))

The value of 2a^(3)-[3a^(3)+4b^(3)-{2a^(3)+(-7a^(3))}5a^(3)-7b^(3)] is (a) -11a^(3)+3b^(3)( b) 7b^(3)+3a^(3)(c)11a^(3)-3b^(3) (d) (11a^(3)+3b^(3))