Answer:
x = 18
Step-by-step explanation:
x° + 8x° + x° = 180° (Linear pair angles)
10x° = 180°
x° = 180°/10
x° = 18°
x = 18
Answer:
11
Step-by-step explanation:
add all together and divided by 3
33 divied by 3=11
hoped it helped
He did not distribute correctly in the first step.
4(x+2)=30
4x + 8=30
He should have distributed the 4 to the 2 as well.

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