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natali 33 [55]
3 years ago
11

A) -3 · x = -21 b) -7x + 16 = 2x - 20 help pls

Mathematics
1 answer:
NeTakaya3 years ago
7 0

Answer:4

Step-by-step explanation:

B) -7x-2x= -20-16

    -9x= -36

      X= -36 /-9

      X= 4

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2 years ago
Need help (problem and directions in the image):
Alex

Triangle ABC is congruent to triangle CDE using the side - angle - side congruence theorem. The sink hole is 52.2 ft and the Perimeter of ABC is 172.2 ft

<h3>What are congruent triangles?</h3>

Two triangles are said to be congruent if they have the same shape and their corresponding sides are congruent.

In the image shown:

AC = CE, BC = ED and they have the same angle (opposite angles are congruent).

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Find out more on congruent triangles at: brainly.com/question/2938476

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