SOLUTION: Y=X-7 4X-7Y=10 FIND X AND Y SOLUTION

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Question 126425This question is from textbook ALGEBRA 1
: Y=X-7
4X-7Y=10
FIND X AND Y SOLUTION This question is from textbook ALGEBRA 1

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
SUBSTITUTING the value of y from the first equation into the second equation

4x-7(x-7)=10 __ 4x-7x+49=10 __ -3x=-39