100[0.09(a+7)]=

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Solution for 100[0.09(a+7)]= equation:


Simplifying
100[0.09(a + 7)] = 0

Reorder the terms:
100[0.09(7 + a)] = 0
100[(7 * 0.09 + a * 0.09)] = 0
100[(0.63 + 0.09a)] = 0
[0.63 * 100 + 0.09a * 100] = 0
[63 + 9a] = 0

Solving
63 + 9a = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-63' to each side of the equation.
63 + -63 + 9a = 0 + -63

Combine like terms: 63 + -63 = 0
0 + 9a = 0 + -63
9a = 0 + -63

Combine like terms: 0 + -63 = -63
9a = -63

Divide each side by '9'.
a = -7

Simplifying
a = -7

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