4z+2-5z=-15

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Solution for 4z+2-5z=-15 equation:


Simplifying
4z + 2 + -5z = -15

Reorder the terms:
2 + 4z + -5z = -15

Combine like terms: 4z + -5z = -1z
2 + -1z = -15

Solving
2 + -1z = -15

Solving for variable 'z'.

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

Add '-2' to each side of the equation.
2 + -2 + -1z = -15 + -2

Combine like terms: 2 + -2 = 0
0 + -1z = -15 + -2
-1z = -15 + -2

Combine like terms: -15 + -2 = -17
-1z = -17

Divide each side by '-1'.
z = 17

Simplifying
z = 17

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