7z-5(3+z)=

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


Simplifying
7z + -5(3 + z) = 0
7z + (3 * -5 + z * -5) = 0
7z + (-15 + -5z) = 0

Reorder the terms:
-15 + 7z + -5z = 0

Combine like terms: 7z + -5z = 2z
-15 + 2z = 0

Solving
-15 + 2z = 0

Solving for variable 'z'.

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

Add '15' to each side of the equation.
-15 + 15 + 2z = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 2z = 0 + 15
2z = 0 + 15

Combine like terms: 0 + 15 = 15
2z = 15

Divide each side by '2'.
z = 7.5

Simplifying
z = 7.5

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