-7(z+1)+4(3z-3)=4(z-5)+13

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Solution for -7(z+1)+4(3z-3)=4(z-5)+13 equation:


Simplifying
-7(z + 1) + 4(3z + -3) = 4(z + -5) + 13

Reorder the terms:
-7(1 + z) + 4(3z + -3) = 4(z + -5) + 13
(1 * -7 + z * -7) + 4(3z + -3) = 4(z + -5) + 13
(-7 + -7z) + 4(3z + -3) = 4(z + -5) + 13

Reorder the terms:
-7 + -7z + 4(-3 + 3z) = 4(z + -5) + 13
-7 + -7z + (-3 * 4 + 3z * 4) = 4(z + -5) + 13
-7 + -7z + (-12 + 12z) = 4(z + -5) + 13

Reorder the terms:
-7 + -12 + -7z + 12z = 4(z + -5) + 13

Combine like terms: -7 + -12 = -19
-19 + -7z + 12z = 4(z + -5) + 13

Combine like terms: -7z + 12z = 5z
-19 + 5z = 4(z + -5) + 13

Reorder the terms:
-19 + 5z = 4(-5 + z) + 13
-19 + 5z = (-5 * 4 + z * 4) + 13
-19 + 5z = (-20 + 4z) + 13

Reorder the terms:
-19 + 5z = -20 + 13 + 4z

Combine like terms: -20 + 13 = -7
-19 + 5z = -7 + 4z

Solving
-19 + 5z = -7 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
-19 + 5z + -4z = -7 + 4z + -4z

Combine like terms: 5z + -4z = 1z
-19 + 1z = -7 + 4z + -4z

Combine like terms: 4z + -4z = 0
-19 + 1z = -7 + 0
-19 + 1z = -7

Add '19' to each side of the equation.
-19 + 19 + 1z = -7 + 19

Combine like terms: -19 + 19 = 0
0 + 1z = -7 + 19
1z = -7 + 19

Combine like terms: -7 + 19 = 12
1z = 12

Divide each side by '1'.
z = 12

Simplifying
z = 12

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