Question

Please answer quickly, 50 points. Thank you.

Answer 1

Given : 7y=8x-14 and y =6

We plug in 6 for y in the given equation

Statement Reason

7y=8x-14, y=6 Given

7(6)= 8x-14 Substitution

56 = 8x Add 14 on both sides

7 = x divide by 8 on both sides

Hence proved x=7