3(a-3)-4=2a-6

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Solution for 3(a-3)-4=2a-6 equation:


Simplifying
3(a + -3) + -4 = 2a + -6

Reorder the terms:
3(-3 + a) + -4 = 2a + -6
(-3 * 3 + a * 3) + -4 = 2a + -6
(-9 + 3a) + -4 = 2a + -6

Reorder the terms:
-9 + -4 + 3a = 2a + -6

Combine like terms: -9 + -4 = -13
-13 + 3a = 2a + -6

Reorder the terms:
-13 + 3a = -6 + 2a

Solving
-13 + 3a = -6 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
-13 + 3a + -2a = -6 + 2a + -2a

Combine like terms: 3a + -2a = 1a
-13 + 1a = -6 + 2a + -2a

Combine like terms: 2a + -2a = 0
-13 + 1a = -6 + 0
-13 + 1a = -6

Add '13' to each side of the equation.
-13 + 13 + 1a = -6 + 13

Combine like terms: -13 + 13 = 0
0 + 1a = -6 + 13
1a = -6 + 13

Combine like terms: -6 + 13 = 7
1a = 7

Divide each side by '1'.
a = 7

Simplifying
a = 7

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