6z-9+2z=7(z-2)-4

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Solution for 6z-9+2z=7(z-2)-4 equation:


Simplifying
6z + -9 + 2z = 7(z + -2) + -4

Reorder the terms:
-9 + 6z + 2z = 7(z + -2) + -4

Combine like terms: 6z + 2z = 8z
-9 + 8z = 7(z + -2) + -4

Reorder the terms:
-9 + 8z = 7(-2 + z) + -4
-9 + 8z = (-2 * 7 + z * 7) + -4
-9 + 8z = (-14 + 7z) + -4

Reorder the terms:
-9 + 8z = -14 + -4 + 7z

Combine like terms: -14 + -4 = -18
-9 + 8z = -18 + 7z

Solving
-9 + 8z = -18 + 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
-9 + 8z + -7z = -18 + 7z + -7z

Combine like terms: 8z + -7z = 1z
-9 + 1z = -18 + 7z + -7z

Combine like terms: 7z + -7z = 0
-9 + 1z = -18 + 0
-9 + 1z = -18

Add '9' to each side of the equation.
-9 + 9 + 1z = -18 + 9

Combine like terms: -9 + 9 = 0
0 + 1z = -18 + 9
1z = -18 + 9

Combine like terms: -18 + 9 = -9
1z = -9

Divide each side by '1'.
z = -9

Simplifying
z = -9

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