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3 years ago

7

}{8} x + 12 = x - 9" alt=" \frac{1}{8} x + 12 = x - 9" align="absmiddle" class="latex-formula">

2 answers:

Inessa05 [86]3 years ago

7 0

Answer: x = 24
————————

1/8x+12=x-9

1. multiply both sides of the equation by 8

x + 96 = 8x - 72

2. Move variable to the left side and change its sign

x - 8x + 96 = -72

3. Move constant to the right side and change its sign

x - 8x = -72 - 96

4. Collect the like terms

-7x = -72 - 96

5. Calculate the difference

-7x = -168

6. Divide both sides of the equation by -7

x = 24

SOLUTION:

x = 24

elixir [45]3 years ago

6 0

Answer: X = 24

Explanation:

1/8x + 12 = x - 9
12 = 7/8x - 9
21 = 7/8x
X = 24

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