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OpenStudy (anonymous):
substitutuon method help me solve please ! need to show my work 4x+y=18 x=y-3
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jimthompson5910 (jim_thompson5910):
Start with 4x+y=18 and replace 'x' with y-3 to get 4x+y=18 4(y-3)+y=18 From here, solve for y
jimthompson5910 (jim_thompson5910):
Once you have a solution in terms of y, use it to find x.
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