Question

solve for the value of n​

Answer 1

Answer:

n = 12

Step-by-step explanation:

4n - 2 + 3n + 8 + 90 = 180

combine like terms

7n + 96 = 180

     -96     -96

7n = 84

divide by 7

n = 12

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-Lil G

Answer 2

Answer:

n = 12

Step-by-step explanation:

Remark

The two angles are complementary. That's because the third angle is a right angle.

Solution

4n - 2 + 3n + 8 + 90 = 180    Subtract 90 from both sides.

4n - 2 + 3n + 8 = 180 -90      Combine like terms.

7n + 6 = 90                            Subtract 6 from both sides.

7n = 90 - 6

7n = 84                                   Divide by 7

n = 84/7

n = 12