9+3(-4z+7)=7(-3z+1)+9

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Solution for 9+3(-4z+7)=7(-3z+1)+9 equation:


Simplifying
9 + 3(-4z + 7) = 7(-3z + 1) + 9

Reorder the terms:
9 + 3(7 + -4z) = 7(-3z + 1) + 9
9 + (7 * 3 + -4z * 3) = 7(-3z + 1) + 9
9 + (21 + -12z) = 7(-3z + 1) + 9

Combine like terms: 9 + 21 = 30
30 + -12z = 7(-3z + 1) + 9

Reorder the terms:
30 + -12z = 7(1 + -3z) + 9
30 + -12z = (1 * 7 + -3z * 7) + 9
30 + -12z = (7 + -21z) + 9

Reorder the terms:
30 + -12z = 7 + 9 + -21z

Combine like terms: 7 + 9 = 16
30 + -12z = 16 + -21z

Solving
30 + -12z = 16 + -21z

Solving for variable 'z'.

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

Add '21z' to each side of the equation.
30 + -12z + 21z = 16 + -21z + 21z

Combine like terms: -12z + 21z = 9z
30 + 9z = 16 + -21z + 21z

Combine like terms: -21z + 21z = 0
30 + 9z = 16 + 0
30 + 9z = 16

Add '-30' to each side of the equation.
30 + -30 + 9z = 16 + -30

Combine like terms: 30 + -30 = 0
0 + 9z = 16 + -30
9z = 16 + -30

Combine like terms: 16 + -30 = -14
9z = -14

Divide each side by '9'.
z = -1.555555556

Simplifying
z = -1.555555556

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