HELP ME PLS I WILL GIVE BRANINEST

Angle A = 180

Step-by-step explanation:

180=7x+40

Subtract 40 from both sides

140 = 7x

Divide 7 from both sides

20=x

Substitue 20 in for x

7(20)+40

140+40 = 180

x = 18

< A = 166

Step-by-step explanation:

Angles A and B are corresponding angles, therefore they have the same measure. Using this information, you get the following equation:

7x + 40 = 3x + 112

-3x         - 3x

4x + 40 = 112

     - 40   - 40

4x = 72

Divide both sides by 4.

x = 18

Solve for A:

7(18) + 40 = 166

Hope it helps!

It will be the first one, because opposite of 9 is negative 9.

It will be the second one because the negative is outside of the absolute value, still making it negative 9.

The fourth will be an answer also because the negative is outside of the absolute value, still making it negative 9.