-7a+18=4(a-1)

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Solution for -7a+18=4(a-1) equation:


Simplifying
-7a + 18 = 4(a + -1)

Reorder the terms:
18 + -7a = 4(a + -1)

Reorder the terms:
18 + -7a = 4(-1 + a)
18 + -7a = (-1 * 4 + a * 4)
18 + -7a = (-4 + 4a)

Solving
18 + -7a = -4 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
18 + -7a + -4a = -4 + 4a + -4a

Combine like terms: -7a + -4a = -11a
18 + -11a = -4 + 4a + -4a

Combine like terms: 4a + -4a = 0
18 + -11a = -4 + 0
18 + -11a = -4

Add '-18' to each side of the equation.
18 + -18 + -11a = -4 + -18

Combine like terms: 18 + -18 = 0
0 + -11a = -4 + -18
-11a = -4 + -18

Combine like terms: -4 + -18 = -22
-11a = -22

Divide each side by '-11'.
a = 2

Simplifying
a = 2

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