SOLUTION: Working with congruent triangles and I need to find x. How do I solve this problem? 12/15 = x/x+4

SOLUTION: Working with congruent triangles and I need to find x. How do I solve this problem? 12/15 = x/x+4

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Question 1075608: Working with congruent triangles and I need to find x. How do I solve this problem?
12/15 = x/x+4
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Cross-multiply
12(x+4)=15x
12x+48=15x
3x=48
x=16
12/15=16/20 as a check.
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