-5-7+4a=-(a-7)

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Solution for -5-7+4a=-(a-7) equation:


Simplifying
-5 + -7 + 4a = -1(a + -7)

Combine like terms: -5 + -7 = -12
-12 + 4a = -1(a + -7)

Reorder the terms:
-12 + 4a = -1(-7 + a)
-12 + 4a = (-7 * -1 + a * -1)
-12 + 4a = (7 + -1a)

Solving
-12 + 4a = 7 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
-12 + 4a + a = 7 + -1a + a

Combine like terms: 4a + a = 5a
-12 + 5a = 7 + -1a + a

Combine like terms: -1a + a = 0
-12 + 5a = 7 + 0
-12 + 5a = 7

Add '12' to each side of the equation.
-12 + 12 + 5a = 7 + 12

Combine like terms: -12 + 12 = 0
0 + 5a = 7 + 12
5a = 7 + 12

Combine like terms: 7 + 12 = 19
5a = 19

Divide each side by '5'.
a = 3.8

Simplifying
a = 3.8

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