Question

solve the equation by subsitution method 3x +5y=10 , x-2y=7​

Answer 1

3x+5y = 10

x-2y = 7

5y = 10 - 3x

y = (10-3x)/5

Substitute in 2nd eq.

x-2(10-3x)/5 = 7

x = -55

Substitute x in the eq. for y

y = -35