Q19 experts give solution 5Y+2
3
E14. Find the value of m, if x
= 2, y = 1 is a
solution of the equation 2x + 3y'= m.
15.
of x + of 24
3x-y=20
16.
The value of expression mx — ny is 3 when x = 5
and y = 6. And its value x = 6 and
y = 5. Find the values of m and n.
17. Solve: 110-5) + 100-2) +54=0
7(2x - 1) + 9(3y - 1) = 25
18.
Solve :
F3y-5
5y-7
4x —3
= 18-5x
6
2
19.
Solve :
x¯Y
= 17
8
5Y+2
2y + x —
3
equations are expressed as .
-b2Cl
—C2a1
and y =
alb2 — a2bl
— a2b1
