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elena-s [515]
3 years ago
8

Simplify and solve each of the following equations.

Mathematics
1 answer:
inna [77]3 years ago
8 0

Answer:

A. h = 4

B. g = 15

C. b = -6

D. b = 15

Step-by-step explanation:

A.  9h + 8 - 12 = -40

         9h - 4 = -40

              + 4    + 4

        9h = -36

       \frac{9h}{9} = \frac{-36}{9}

       h = -4

B.  9 + 6g + 1 = 100

        10 + 6g = 100

      - 10            - 10

            6g = 90

            \frac{6g}{6} = \frac{90}{6}

            g = 15

C.  -45 = 28 - 13 + 10b

    -45 = 15 + 10b

    - 15  - 15

    -60 = 10b

    \frac{-60}{10} = \frac{10b}{10}

    b = -6

D.  37 = 11 +3b - 19

     37 = 3b - 8

    + 8         + 8

     45 = 3b

     \frac{45}{3} = \frac{3b}{3}

     15 = b

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