2(7-2z)-3(4z+7)=z-9

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Solution for 2(7-2z)-3(4z+7)=z-9 equation:


Simplifying
2(7 + -2z) + -3(4z + 7) = z + -9
(7 * 2 + -2z * 2) + -3(4z + 7) = z + -9
(14 + -4z) + -3(4z + 7) = z + -9

Reorder the terms:
14 + -4z + -3(7 + 4z) = z + -9
14 + -4z + (7 * -3 + 4z * -3) = z + -9
14 + -4z + (-21 + -12z) = z + -9

Reorder the terms:
14 + -21 + -4z + -12z = z + -9

Combine like terms: 14 + -21 = -7
-7 + -4z + -12z = z + -9

Combine like terms: -4z + -12z = -16z
-7 + -16z = z + -9

Reorder the terms:
-7 + -16z = -9 + z

Solving
-7 + -16z = -9 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-7 + -16z + -1z = -9 + z + -1z

Combine like terms: -16z + -1z = -17z
-7 + -17z = -9 + z + -1z

Combine like terms: z + -1z = 0
-7 + -17z = -9 + 0
-7 + -17z = -9

Add '7' to each side of the equation.
-7 + 7 + -17z = -9 + 7

Combine like terms: -7 + 7 = 0
0 + -17z = -9 + 7
-17z = -9 + 7

Combine like terms: -9 + 7 = -2
-17z = -2

Divide each side by '-17'.
z = 0.1176470588

Simplifying
z = 0.1176470588

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