15=3-(z+10)

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Solution for 15=3-(z+10) equation:


Simplifying
15 = 3 + -1(z + 10)

Reorder the terms:
15 = 3 + -1(10 + z)
15 = 3 + (10 * -1 + z * -1)
15 = 3 + (-10 + -1z)

Combine like terms: 3 + -10 = -7
15 = -7 + -1z

Solving
15 = -7 + -1z

Solving for variable 'z'.

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

Add 'z' to each side of the equation.
15 + z = -7 + -1z + z

Combine like terms: -1z + z = 0
15 + z = -7 + 0
15 + z = -7

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

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

Combine like terms: -7 + -15 = -22
z = -22

Simplifying
z = -22

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