7 (m+5) = 21 as a step by step problem?

Mathematics

2 answers:

Sever21 [200]2 years ago

8 0

Answer:

m=-2

Step-by-step explanation:

You want to isolate the variable on one side (m).

Divide each side by 7.

m+5=3

Subtract 5 from both sides

m=-2

lina2011 [118]2 years ago

6 0

Answer:

m = -2.

Step-by-step explanation:

First divide both sides by 7; m + 5 = 3.

Then subtract 5 from both sides; m = -2.

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Answer:

Hello! :) I hope I’m correct!!

Step-by-step explanation:

I think the answer should be the second one.

the angle with the square at the corner is obviously a right angle, 90°. opposite angles have the same angle so opposite to it, angle 3 is also 90°. then add the angle 3 and the given angle (23°). 90°+23°=113° then subtract it to 180° (since a straight line is 180°). 180°-113°=67°

The steps:

To solve m< 2,

$m< 2 = 180 - (90 + 23)$