28-7a=-7(a-4)

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Solution for 28-7a=-7(a-4) equation: 


Simplifying
28 + -7a = -7(a + -4)

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

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

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

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

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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