SOLUTION: if 15x-7+6y=20 what is the value of 10x+4y-5?

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Question 749958: if 15x-7+6y=20 what is the value of 10x+4y-5?
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
15x - 7 + 6y = 20, add 7 to each side of the equation
15x + 6y = 27, multiply both sides by 2/3
10x + 4y = 18, subtract 5 from both sides of the equation
10x + 4y - 5 = highlight%2813%29