20=-2+5(z+3)

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Solution for 20=-2+5(z+3) equation:


Simplifying
20 = -2 + 5(z + 3)

Reorder the terms:
20 = -2 + 5(3 + z)
20 = -2 + (3 * 5 + z * 5)
20 = -2 + (15 + 5z)

Combine like terms: -2 + 15 = 13
20 = 13 + 5z

Solving
20 = 13 + 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
20 + -5z = 13 + 5z + -5z

Combine like terms: 5z + -5z = 0
20 + -5z = 13 + 0
20 + -5z = 13

Add '-20' to each side of the equation.
20 + -20 + -5z = 13 + -20

Combine like terms: 20 + -20 = 0
0 + -5z = 13 + -20
-5z = 13 + -20

Combine like terms: 13 + -20 = -7
-5z = -7

Divide each side by '-5'.
z = 1.4

Simplifying
z = 1.4

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