7z+2-3z+5=15

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Solution for 7z+2-3z+5=15 equation:


Simplifying
7z + 2 + -3z + 5 = 15

Reorder the terms:
2 + 5 + 7z + -3z = 15

Combine like terms: 2 + 5 = 7
7 + 7z + -3z = 15

Combine like terms: 7z + -3z = 4z
7 + 4z = 15

Solving
7 + 4z = 15

Solving for variable 'z'.

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

Add '-7' to each side of the equation.
7 + -7 + 4z = 15 + -7

Combine like terms: 7 + -7 = 0
0 + 4z = 15 + -7
4z = 15 + -7

Combine like terms: 15 + -7 = 8
4z = 8

Divide each side by '4'.
z = 2

Simplifying
z = 2

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