3(.75a+3)+6=87

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Solution for 3(.75a+3)+6=87 equation:


Simplifying
3(0.75a + 3) + 6 = 87

Reorder the terms:
3(3 + 0.75a) + 6 = 87
(3 * 3 + 0.75a * 3) + 6 = 87
(9 + 2.25a) + 6 = 87

Reorder the terms:
9 + 6 + 2.25a = 87

Combine like terms: 9 + 6 = 15
15 + 2.25a = 87

Solving
15 + 2.25a = 87

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + 2.25a = 87 + -15

Combine like terms: 15 + -15 = 0
0 + 2.25a = 87 + -15
2.25a = 87 + -15

Combine like terms: 87 + -15 = 72
2.25a = 72

Divide each side by '2.25'.
a = 32

Simplifying
a = 32

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