3(z+7)-4z=-(z-2)

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Solution for 3(z+7)-4z=-(z-2) equation:


Simplifying
3(z + 7) + -4z = -1(z + -2)

Reorder the terms:
3(7 + z) + -4z = -1(z + -2)
(7 * 3 + z * 3) + -4z = -1(z + -2)
(21 + 3z) + -4z = -1(z + -2)

Combine like terms: 3z + -4z = -1z
21 + -1z = -1(z + -2)

Reorder the terms:
21 + -1z = -1(-2 + z)
21 + -1z = (-2 * -1 + z * -1)
21 + -1z = (2 + -1z)

Add 'z' to each side of the equation.
21 + -1z + z = 2 + -1z + z

Combine like terms: -1z + z = 0
21 + 0 = 2 + -1z + z
21 = 2 + -1z + z

Combine like terms: -1z + z = 0
21 = 2 + 0
21 = 2

Solving
21 = 2

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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