7(z+3)=4(z+1)-10

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Solution for 7(z+3)=4(z+1)-10 equation:


Simplifying
7(z + 3) = 4(z + 1) + -10

Reorder the terms:
7(3 + z) = 4(z + 1) + -10
(3 * 7 + z * 7) = 4(z + 1) + -10
(21 + 7z) = 4(z + 1) + -10

Reorder the terms:
21 + 7z = 4(1 + z) + -10
21 + 7z = (1 * 4 + z * 4) + -10
21 + 7z = (4 + 4z) + -10

Reorder the terms:
21 + 7z = 4 + -10 + 4z

Combine like terms: 4 + -10 = -6
21 + 7z = -6 + 4z

Solving
21 + 7z = -6 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
21 + 7z + -4z = -6 + 4z + -4z

Combine like terms: 7z + -4z = 3z
21 + 3z = -6 + 4z + -4z

Combine like terms: 4z + -4z = 0
21 + 3z = -6 + 0
21 + 3z = -6

Add '-21' to each side of the equation.
21 + -21 + 3z = -6 + -21

Combine like terms: 21 + -21 = 0
0 + 3z = -6 + -21
3z = -6 + -21

Combine like terms: -6 + -21 = -27
3z = -27

Divide each side by '3'.
z = -9

Simplifying
z = -9

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