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Moshe Houston
Mathematics
13 October, 16:58
Simplify
99=2 (-7b-3) + 7
+3
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2
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Ryland Mayer
13 October, 17:01
0
b = - 7 is the answer
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Jean
13 October, 17:22
0
b=-7
Step-by-step explanation:
Simplifying
99 = 2 (-7b + - 3) + 7
Reorder the terms:
99 = 2 (-3 + - 7b) + 7
99 = (-3 * 2 + - 7b * 2) + 7
99 = (-6 + - 14b) + 7
Reorder the terms:
99 = - 6 + 7 + - 14b
Combine like terms: - 6 + 7 = 1
99 = 1 + - 14b
Solving
99 = 1 + - 14b
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '14b' to each side of the equation.
99 + 14b = 1 + - 14b + 14b
Combine like terms: - 14b + 14b = 0
99 + 14b = 1 + 0
99 + 14b = 1
Add '-99' to each side of the equation.
99 + - 99 + 14b = 1 + - 99
Combine like terms: 99 + - 99 = 0
0 + 14b = 1 + - 99
14b = 1 + - 99
Combine like terms: 1 + - 99 = - 98
14b = - 98
Divide each side by '14'.
b = - 7
Simplifying
b = - 7
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