Answer:
36x - 7
Step-by-step explanation:
Answer:
-8(8-7a)
Step-by-step explanation:
56a-64=-8(8-7a)
Answer:
12 prob
Step-by-step explanation:
Answer: 
<u>Simplify both sides of the equation</u>
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<u>Flip the equation</u>
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<u>Subtract 91 from both sides</u>
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<u>Divide both sides by -70</u>
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Answer:
36
Step-by-step explanation:
AOB + BOC = AOC
AOC = 90 since the lines are perpendicular
6x-12 + 3x+30 = 90
Combine like terms
9x + 18 = 90
Subtract 18 from each side
9x+18-18 = 90-18
9x = 72
divide by 9
9x/9 = 72/9
x = 8
AOB = 6x - 12
= 6*8 - 12
= 48 -12
= 36