Question

Find the solution using the substitution method of solving a system of equations. x + 2y = 5 y = –2

Answer 1

x=9 y=-2

Explanation:

Substitute -2 for y in x+2y=5

x+2y=5

x+(2)(-2)=5

x-4=5(add 4 to both sides)

x=9

y=-2 as stated before

x=9 y=-2