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tatiyna
2 years ago
15

If (a, - 7) is a solution to the equation 8a =-3b – 5, what is a?

Mathematics
1 answer:
Olin [163]2 years ago
4 0

Answer:

C

Step-by-step explanation:

b is the y value of the equation.

8a = -3b - 5         Let b = - 7

8a = -3*-7 - 5       Combine

8a = 21 - 5            Combine the right again.

8a = 16                 Divide by 8

8a/8 = 16/8

a = 2

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Answer:

  1. Define your variable and write your equation:  36 + b + (3b-28) = 180°.
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Step-by-step explanation:

a = 36

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then:

1)  36 + b + (3b-28) = 180   ⇒ )Define your variable. Write your equation and solve)

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Check:

36° + 43° + 101° = 180°

8 0
3 years ago
Table of values 3x+2y=24
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