Question

X + y = 48
x - 2y = 3

Answer 1

Solve for the first variable in one of the equations, then substitute the result into the other equation.

x= 93
y= -45

Answer 2

y = 15

x = 43

Explanation:

x + y = 48

x - 2y = 3

3y = 45

y = 15

x + y = 48

x + 15 = 48

x = 43