-18+4a=7a+3(2+7a)

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Solution for -18+4a=7a+3(2+7a) equation:


Simplifying
-18 + 4a = 7a + 3(2 + 7a)
-18 + 4a = 7a + (2 * 3 + 7a * 3)
-18 + 4a = 7a + (6 + 21a)

Reorder the terms:
-18 + 4a = 6 + 7a + 21a

Combine like terms: 7a + 21a = 28a
-18 + 4a = 6 + 28a

Solving
-18 + 4a = 6 + 28a

Solving for variable 'a'.

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

Add '-28a' to each side of the equation.
-18 + 4a + -28a = 6 + 28a + -28a

Combine like terms: 4a + -28a = -24a
-18 + -24a = 6 + 28a + -28a

Combine like terms: 28a + -28a = 0
-18 + -24a = 6 + 0
-18 + -24a = 6

Add '18' to each side of the equation.
-18 + 18 + -24a = 6 + 18

Combine like terms: -18 + 18 = 0
0 + -24a = 6 + 18
-24a = 6 + 18

Combine like terms: 6 + 18 = 24
-24a = 24

Divide each side by '-24'.
a = -1

Simplifying
a = -1

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