-2z^2-4z=-z^2+7z

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Solution for -2z^2-4z=-z^2+7z equation:


Simplifying
-2z2 + -4z = -1z2 + 7z

Reorder the terms:
-4z + -2z2 = -1z2 + 7z

Reorder the terms:
-4z + -2z2 = 7z + -1z2

Solving
-4z + -2z2 = 7z + -1z2

Solving for variable 'z'.

Reorder the terms:
-4z + -7z + -2z2 + z2 = 7z + -1z2 + -7z + z2

Combine like terms: -4z + -7z = -11z
-11z + -2z2 + z2 = 7z + -1z2 + -7z + z2

Combine like terms: -2z2 + z2 = -1z2
-11z + -1z2 = 7z + -1z2 + -7z + z2

Reorder the terms:
-11z + -1z2 = 7z + -7z + -1z2 + z2

Combine like terms: 7z + -7z = 0
-11z + -1z2 = 0 + -1z2 + z2
-11z + -1z2 = -1z2 + z2

Combine like terms: -1z2 + z2 = 0
-11z + -1z2 = 0

Factor out the Greatest Common Factor (GCF), '-1z'.
-1z(11 + z) = 0

Ignore the factor -1.

Subproblem 1

Set the factor 'z' equal to zero and attempt to solve: Simplifying z = 0 Solving z = 0 Move all terms containing z to the left, all other terms to the right. Simplifying z = 0

Subproblem 2

Set the factor '(11 + z)' equal to zero and attempt to solve: Simplifying 11 + z = 0 Solving 11 + z = 0 Move all terms containing z to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + z = 0 + -11 Combine like terms: 11 + -11 = 0 0 + z = 0 + -11 z = 0 + -11 Combine like terms: 0 + -11 = -11 z = -11 Simplifying z = -11

Solution

z = {0, -11}

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