-4(z-9)-(7z-5)=-12z

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Solution for -4(z-9)-(7z-5)=-12z equation:


Simplifying
-4(z + -9) + -1(7z + -5) = -12z

Reorder the terms:
-4(-9 + z) + -1(7z + -5) = -12z
(-9 * -4 + z * -4) + -1(7z + -5) = -12z
(36 + -4z) + -1(7z + -5) = -12z

Reorder the terms:
36 + -4z + -1(-5 + 7z) = -12z
36 + -4z + (-5 * -1 + 7z * -1) = -12z
36 + -4z + (5 + -7z) = -12z

Reorder the terms:
36 + 5 + -4z + -7z = -12z

Combine like terms: 36 + 5 = 41
41 + -4z + -7z = -12z

Combine like terms: -4z + -7z = -11z
41 + -11z = -12z

Solving
41 + -11z = -12z

Solving for variable 'z'.

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

Add '12z' to each side of the equation.
41 + -11z + 12z = -12z + 12z

Combine like terms: -11z + 12z = 1z
41 + 1z = -12z + 12z

Combine like terms: -12z + 12z = 0
41 + 1z = 0

Add '-41' to each side of the equation.
41 + -41 + 1z = 0 + -41

Combine like terms: 41 + -41 = 0
0 + 1z = 0 + -41
1z = 0 + -41

Combine like terms: 0 + -41 = -41
1z = -41

Divide each side by '1'.
z = -41

Simplifying
z = -41

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