Question

2. Solve the following system of equations. y = 5 + x 2x + 2y = 30

Answer 1

Answer is d 1+2 y=5 add all cards

Answer 2

x = 5

since we know y= 5 + x , plug this into y in the second equation.

2x + 2 (5 + x) = 30

distribute 2 into the 5 and x

2x + 10 + 2x = 30

combine like terms

4x + 10 = 30

subtract 10 from both sides

4x = 20

divide four by both sides to isolate the variable

x = 5