4(7+2z)=15-8z

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Solution for 4(7+2z)=15-8z equation:


Simplifying
4(7 + 2z) = 15 + -8z
(7 * 4 + 2z * 4) = 15 + -8z
(28 + 8z) = 15 + -8z

Solving
28 + 8z = 15 + -8z

Solving for variable 'z'.

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

Add '8z' to each side of the equation.
28 + 8z + 8z = 15 + -8z + 8z

Combine like terms: 8z + 8z = 16z
28 + 16z = 15 + -8z + 8z

Combine like terms: -8z + 8z = 0
28 + 16z = 15 + 0
28 + 16z = 15

Add '-28' to each side of the equation.
28 + -28 + 16z = 15 + -28

Combine like terms: 28 + -28 = 0
0 + 16z = 15 + -28
16z = 15 + -28

Combine like terms: 15 + -28 = -13
16z = -13

Divide each side by '16'.
z = -0.8125

Simplifying
z = -0.8125

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