z+3(z-4)=19

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Solution for z+3(z-4)=19 equation:


Simplifying
z + 3(z + -4) = 19

Reorder the terms:
z + 3(-4 + z) = 19
z + (-4 * 3 + z * 3) = 19
z + (-12 + 3z) = 19

Reorder the terms:
-12 + z + 3z = 19

Combine like terms: z + 3z = 4z
-12 + 4z = 19

Solving
-12 + 4z = 19

Solving for variable 'z'.

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

Add '12' to each side of the equation.
-12 + 12 + 4z = 19 + 12

Combine like terms: -12 + 12 = 0
0 + 4z = 19 + 12
4z = 19 + 12

Combine like terms: 19 + 12 = 31
4z = 31

Divide each side by '4'.
z = 7.75

Simplifying
z = 7.75

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