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

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


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

Combine like terms: -7 + 7 = 0
0 + -7a = 7(a + -4)
-7a = 7(a + -4)

Reorder the terms:
-7a = 7(-4 + a)
-7a = (-4 * 7 + a * 7)
-7a = (-28 + 7a)

Solving
-7a = -28 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
-7a + -7a = -28 + 7a + -7a

Combine like terms: -7a + -7a = -14a
-14a = -28 + 7a + -7a

Combine like terms: 7a + -7a = 0
-14a = -28 + 0
-14a = -28

Divide each side by '-14'.
a = 2

Simplifying
a = 2

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