Asked by Anonymous
solve by the substitution method. 5x+9y=53 x=47-7y
Answers
Answered by
Reiny
sub the second into the first ....
5(47-7y) + 9y = 53
solve this for y, then back-substitute into the 2nd
5(47-7y) + 9y = 53
solve this for y, then back-substitute into the 2nd
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