7-(a+2)+4a-8=a-1

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Solution for 7-(a+2)+4a-8=a-1 equation:


Simplifying
7 + -1(a + 2) + 4a + -8 = a + -1

Reorder the terms:
7 + -1(2 + a) + 4a + -8 = a + -1
7 + (2 * -1 + a * -1) + 4a + -8 = a + -1
7 + (-2 + -1a) + 4a + -8 = a + -1

Reorder the terms:
7 + -2 + -8 + -1a + 4a = a + -1

Combine like terms: 7 + -2 = 5
5 + -8 + -1a + 4a = a + -1

Combine like terms: 5 + -8 = -3
-3 + -1a + 4a = a + -1

Combine like terms: -1a + 4a = 3a
-3 + 3a = a + -1

Reorder the terms:
-3 + 3a = -1 + a

Solving
-3 + 3a = -1 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-3 + 3a + -1a = -1 + a + -1a

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

Combine like terms: a + -1a = 0
-3 + 2a = -1 + 0
-3 + 2a = -1

Add '3' to each side of the equation.
-3 + 3 + 2a = -1 + 3

Combine like terms: -3 + 3 = 0
0 + 2a = -1 + 3
2a = -1 + 3

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

Divide each side by '2'.
a = 1

Simplifying
a = 1

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