9-7(3z+1)=6(-3z+5)-5

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Solution for 9-7(3z+1)=6(-3z+5)-5 equation:


Simplifying
9 + -7(3z + 1) = 6(-3z + 5) + -5

Reorder the terms:
9 + -7(1 + 3z) = 6(-3z + 5) + -5
9 + (1 * -7 + 3z * -7) = 6(-3z + 5) + -5
9 + (-7 + -21z) = 6(-3z + 5) + -5

Combine like terms: 9 + -7 = 2
2 + -21z = 6(-3z + 5) + -5

Reorder the terms:
2 + -21z = 6(5 + -3z) + -5
2 + -21z = (5 * 6 + -3z * 6) + -5
2 + -21z = (30 + -18z) + -5

Reorder the terms:
2 + -21z = 30 + -5 + -18z

Combine like terms: 30 + -5 = 25
2 + -21z = 25 + -18z

Solving
2 + -21z = 25 + -18z

Solving for variable 'z'.

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

Add '18z' to each side of the equation.
2 + -21z + 18z = 25 + -18z + 18z

Combine like terms: -21z + 18z = -3z
2 + -3z = 25 + -18z + 18z

Combine like terms: -18z + 18z = 0
2 + -3z = 25 + 0
2 + -3z = 25

Add '-2' to each side of the equation.
2 + -2 + -3z = 25 + -2

Combine like terms: 2 + -2 = 0
0 + -3z = 25 + -2
-3z = 25 + -2

Combine like terms: 25 + -2 = 23
-3z = 23

Divide each side by '-3'.
z = -7.666666667

Simplifying
z = -7.666666667

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