Craig T.
asked • 11/13/16
polynomials subtraction or addition
2 Answers By Expert Tutors
Elizabeth H.
answered • 11/13/16
Energetic tutor with Master's Degree
4y - 8 = 20
Add 8 to each side
4y - 8 (+ 8) = 20 (+ 8)
4y = 28
Divide each side by 4
4y/4 = 28/4
The 4s cancel on the left
y = 28/4 = 7
Mark M.
answered • 11/13/16
Mathematics Teacher - NCLB Highly Qualified
Assuming you want to solve:
4y - 8 = 20
4y = 28
y = 7
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