4a-(a-2)=-7

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


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

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

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

Combine like terms: 4a + -1a = 3a
2 + 3a = -7

Solving
2 + 3a = -7

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2 + 3a = -7 + -2

Combine like terms: 2 + -2 = 0
0 + 3a = -7 + -2
3a = -7 + -2

Combine like terms: -7 + -2 = -9
3a = -9

Divide each side by '3'.
a = -3

Simplifying
a = -3

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