7-(a-3)=3(2a-6)

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Solution for 7-(a-3)=3(2a-6) equation:


Simplifying
7 + -1(a + -3) = 3(2a + -6)

Reorder the terms:
7 + -1(-3 + a) = 3(2a + -6)
7 + (-3 * -1 + a * -1) = 3(2a + -6)
7 + (3 + -1a) = 3(2a + -6)

Combine like terms: 7 + 3 = 10
10 + -1a = 3(2a + -6)

Reorder the terms:
10 + -1a = 3(-6 + 2a)
10 + -1a = (-6 * 3 + 2a * 3)
10 + -1a = (-18 + 6a)

Solving
10 + -1a = -18 + 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
10 + -1a + -6a = -18 + 6a + -6a

Combine like terms: -1a + -6a = -7a
10 + -7a = -18 + 6a + -6a

Combine like terms: 6a + -6a = 0
10 + -7a = -18 + 0
10 + -7a = -18

Add '-10' to each side of the equation.
10 + -10 + -7a = -18 + -10

Combine like terms: 10 + -10 = 0
0 + -7a = -18 + -10
-7a = -18 + -10

Combine like terms: -18 + -10 = -28
-7a = -28

Divide each side by '-7'.
a = 4

Simplifying
a = 4

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