6(a-7)+18=3(a-7)

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Solution for 6(a-7)+18=3(a-7) equation:


Simplifying
6(a + -7) + 18 = 3(a + -7)

Reorder the terms:
6(-7 + a) + 18 = 3(a + -7)
(-7 * 6 + a * 6) + 18 = 3(a + -7)
(-42 + 6a) + 18 = 3(a + -7)

Reorder the terms:
-42 + 18 + 6a = 3(a + -7)

Combine like terms: -42 + 18 = -24
-24 + 6a = 3(a + -7)

Reorder the terms:
-24 + 6a = 3(-7 + a)
-24 + 6a = (-7 * 3 + a * 3)
-24 + 6a = (-21 + 3a)

Solving
-24 + 6a = -21 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-24 + 6a + -3a = -21 + 3a + -3a

Combine like terms: 6a + -3a = 3a
-24 + 3a = -21 + 3a + -3a

Combine like terms: 3a + -3a = 0
-24 + 3a = -21 + 0
-24 + 3a = -21

Add '24' to each side of the equation.
-24 + 24 + 3a = -21 + 24

Combine like terms: -24 + 24 = 0
0 + 3a = -21 + 24
3a = -21 + 24

Combine like terms: -21 + 24 = 3
3a = 3

Divide each side by '3'.
a = 1

Simplifying
a = 1

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