-10=-7z-(-9z+3)

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Solution for -10=-7z-(-9z+3) equation:


Simplifying
-10 = -7z + -1(-9z + 3)

Reorder the terms:
-10 = -7z + -1(3 + -9z)
-10 = -7z + (3 * -1 + -9z * -1)
-10 = -7z + (-3 + 9z)

Reorder the terms:
-10 = -3 + -7z + 9z

Combine like terms: -7z + 9z = 2z
-10 = -3 + 2z

Solving
-10 = -3 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
-10 + -2z = -3 + 2z + -2z

Combine like terms: 2z + -2z = 0
-10 + -2z = -3 + 0
-10 + -2z = -3

Add '10' to each side of the equation.
-10 + 10 + -2z = -3 + 10

Combine like terms: -10 + 10 = 0
0 + -2z = -3 + 10
-2z = -3 + 10

Combine like terms: -3 + 10 = 7
-2z = 7

Divide each side by '-2'.
z = -3.5

Simplifying
z = -3.5

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