Question

What is the resulting equation when the expression for y in the second equation is substituted into the first equation?

3x + y = 1
y = 6 - 4x

A.-x + 6 = 1
B.x + 6 = 1
C.7x + 6 = 1

Answer 1

Answer: 3x + 6 -4x = 1

Simplify to -x + 6 = 1 because 3x - 4x = -1x