130=-3a+7(3a-2)

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Solution for 130=-3a+7(3a-2) equation:


Simplifying
130 = -3a + 7(3a + -2)

Reorder the terms:
130 = -3a + 7(-2 + 3a)
130 = -3a + (-2 * 7 + 3a * 7)
130 = -3a + (-14 + 21a)

Reorder the terms:
130 = -14 + -3a + 21a

Combine like terms: -3a + 21a = 18a
130 = -14 + 18a

Solving
130 = -14 + 18a

Solving for variable 'a'.

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

Add '-18a' to each side of the equation.
130 + -18a = -14 + 18a + -18a

Combine like terms: 18a + -18a = 0
130 + -18a = -14 + 0
130 + -18a = -14

Add '-130' to each side of the equation.
130 + -130 + -18a = -14 + -130

Combine like terms: 130 + -130 = 0
0 + -18a = -14 + -130
-18a = -14 + -130

Combine like terms: -14 + -130 = -144
-18a = -144

Divide each side by '-18'.
a = 8

Simplifying
a = 8

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