22=0.5(a+30)

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Solution for 22=0.5(a+30) equation: 


Simplifying
22 = 0.5(a + 30)

Reorder the terms:
22 = 0.5(30 + a)
22 = (30 * 0.5 + a * 0.5)
22 = (15 + 0.5a)

Solving
22 = 15 + 0.5a

Solving for variable 'a'.

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

Add '-0.5a' to each side of the equation.
22 + -0.5a = 15 + 0.5a + -0.5a

Combine like terms: 0.5a + -0.5a = 0.0
22 + -0.5a = 15 + 0.0
22 + -0.5a = 15

Add '-22' to each side of the equation.
22 + -22 + -0.5a = 15 + -22

Combine like terms: 22 + -22 = 0
0 + -0.5a = 15 + -22
-0.5a = 15 + -22

Combine like terms: 15 + -22 = -7
-0.5a = -7

Divide each side by '-0.5'.
a = 14

Simplifying
a = 14

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