7(-3z)+3=-6(z-4)-8

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Solution for 7(-3z)+3=-6(z-4)-8 equation:


Simplifying
7(-3z) + 3 = -6(z + -4) + -8

Remove parenthesis around (-3z)
7 * -3z + 3 = -6(z + -4) + -8

Multiply 7 * -3
-21z + 3 = -6(z + -4) + -8

Reorder the terms:
3 + -21z = -6(z + -4) + -8

Reorder the terms:
3 + -21z = -6(-4 + z) + -8
3 + -21z = (-4 * -6 + z * -6) + -8
3 + -21z = (24 + -6z) + -8

Reorder the terms:
3 + -21z = 24 + -8 + -6z

Combine like terms: 24 + -8 = 16
3 + -21z = 16 + -6z

Solving
3 + -21z = 16 + -6z

Solving for variable 'z'.

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

Add '6z' to each side of the equation.
3 + -21z + 6z = 16 + -6z + 6z

Combine like terms: -21z + 6z = -15z
3 + -15z = 16 + -6z + 6z

Combine like terms: -6z + 6z = 0
3 + -15z = 16 + 0
3 + -15z = 16

Add '-3' to each side of the equation.
3 + -3 + -15z = 16 + -3

Combine like terms: 3 + -3 = 0
0 + -15z = 16 + -3
-15z = 16 + -3

Combine like terms: 16 + -3 = 13
-15z = 13

Divide each side by '-15'.
z = -0.8666666667

Simplifying
z = -0.8666666667

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