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What is the mABC? help plz

What is the mABC? help plz-example-1
User Chris Meek
by
5.2k points

1 Answer

4 votes

Answer:

mB=12-x

Explanation:

mA+mC+mB=180

9x-12+5x+24+mB=180

9x+5x-12+24+mB=180

14x+12+mB=180

14x+mB=180-12

14x+mB=168

x+mB=168รท14

x+mB=12

mB=12-x

User Kraang Prime
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4.7k points