Substituting x-4=y and -5y+8x=29
2 answers:
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Answer:
multiply by 10 on both sides
that is to get rid of the denominator
Check the picture below
notice, using the 30-60-90 rule, since that triangle is a 30-60-90 triangle, we get 11 = 2x
notice, using the 30-60-90 rule, since that triangle is a 30-60-90 triangle, we get 11 = 2x