Asked by Karlee

Write and solve an equation for each of the following.
Triangle ABC is congruent to triangle DEF. AB = 2x - 10, and DE = x + 20. Find the value of x and AB.

I don't even know where to begin, please help.
Answered by Karlee
Would the equation be 2x - 10 = x + 20?
Answered by lena
yup, then solve for x.
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