2 years ago

If someone helps me I’ll give brainless

Mathematics

1 answer:

Sunny_sXe [5.5K]2 years ago

6 0

Answer:

128

Step-by-step explanation:

The two angles form a straight line so they add to 180

2m+62 + 3m +143 = 180

Combine like terms

5m+205=180

Subtract 205 from each side

5m+205-205=180-205

5m = -25

Divide by 5

5m/5 = -25/5

m = -5

We want to find the angle so we substitute the value of m into the the formula for the angle.

< RBM =3m +143 = 3(-5) +143 = -15+143 =128

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