3[z-(10z+71)+8]=3(z+7)

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Solution for 3[z-(10z+71)+8]=3(z+7) equation:


Simplifying
3[z + -1(10z + 71) + 8] = 3(z + 7)

Reorder the terms:
3[z + -1(71 + 10z) + 8] = 3(z + 7)
3[z + (71 * -1 + 10z * -1) + 8] = 3(z + 7)
3[z + (-71 + -10z) + 8] = 3(z + 7)

Reorder the terms:
3[-71 + 8 + z + -10z] = 3(z + 7)

Combine like terms: -71 + 8 = -63
3[-63 + z + -10z] = 3(z + 7)

Combine like terms: z + -10z = -9z
3[-63 + -9z] = 3(z + 7)
[-63 * 3 + -9z * 3] = 3(z + 7)
[-189 + -27z] = 3(z + 7)

Reorder the terms:
-189 + -27z = 3(7 + z)
-189 + -27z = (7 * 3 + z * 3)
-189 + -27z = (21 + 3z)

Solving
-189 + -27z = 21 + 3z

Solving for variable 'z'.

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

Add '-3z' to each side of the equation.
-189 + -27z + -3z = 21 + 3z + -3z

Combine like terms: -27z + -3z = -30z
-189 + -30z = 21 + 3z + -3z

Combine like terms: 3z + -3z = 0
-189 + -30z = 21 + 0
-189 + -30z = 21

Add '189' to each side of the equation.
-189 + 189 + -30z = 21 + 189

Combine like terms: -189 + 189 = 0
0 + -30z = 21 + 189
-30z = 21 + 189

Combine like terms: 21 + 189 = 210
-30z = 210

Divide each side by '-30'.
z = -7

Simplifying
z = -7

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