Question

Solve the following pair o f linear equations by substitution method 7x-15y=2,x+2y= 3

Answer 1

X+2y=3
X=3-2y

7x-15y=2
7(3-2y)-15y=2
21-14y-15y=2
21-y=2
-y=2-21
-y=-19
y=19



x=3-2y
x=3*19
x=57