-4(z+7)-21=2(-2z-6)-37

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Solution for -4(z+7)-21=2(-2z-6)-37 equation: 


Simplifying
-4(z + 7) + -21 = 2(-2z + -6) + -37

Reorder the terms:
-4(7 + z) + -21 = 2(-2z + -6) + -37
(7 * -4 + z * -4) + -21 = 2(-2z + -6) + -37
(-28 + -4z) + -21 = 2(-2z + -6) + -37

Reorder the terms:
-28 + -21 + -4z = 2(-2z + -6) + -37

Combine like terms: -28 + -21 = -49
-49 + -4z = 2(-2z + -6) + -37

Reorder the terms:
-49 + -4z = 2(-6 + -2z) + -37
-49 + -4z = (-6 * 2 + -2z * 2) + -37
-49 + -4z = (-12 + -4z) + -37

Reorder the terms:
-49 + -4z = -12 + -37 + -4z

Combine like terms: -12 + -37 = -49
-49 + -4z = -49 + -4z

Add '49' to each side of the equation.
-49 + 49 + -4z = -49 + 49 + -4z

Combine like terms: -49 + 49 = 0
0 + -4z = -49 + 49 + -4z
-4z = -49 + 49 + -4z

Combine like terms: -49 + 49 = 0
-4z = 0 + -4z
-4z = -4z

Add '4z' to each side of the equation.
-4z + 4z = -4z + 4z

Combine like terms: -4z + 4z = 0
0 = -4z + 4z

Combine like terms: -4z + 4z = 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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