Question

I need help I don’t understand this

Answer 1

See the explanation

Explanation:

Hello! here we need to match the statements on the left-hand side to the reasons on the right-hand-side.

So this is as follows:

Statements:                                                       Reasons:

Segment Addition Postulate                            $AB+BC=AC$

Substitute the given values                              $5x+1+15=7x$

Simplify                                                               $5x+16=7x$

Subtract 5x from both sides                              $16=2x$

Divide both sides by 2                                       $16/2=2x/2$

Simplify                                                               $AC=7x$

Substitute 8 for x                                               $AC=7(8)$

Simplify                                                               $AC=56$

So what we did here is to find the measure of segment AC by finding the x-value first. In other words, we have proven that AC = 56 by following logical arguments organized in an structured manner.

Learn more:

Two-column proof: brainly.com/question/13338796

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