-0.5=-0.25(a+7)

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Solution for -0.5=-0.25(a+7) equation: 


Simplifying
-0.5 = -0.25(a + 7)

Reorder the terms:
-0.5 = -0.25(7 + a)
-0.5 = (7 * -0.25 + a * -0.25)
-0.5 = (-1.75 + -0.25a)

Solving
-0.5 = -1.75 + -0.25a

Solving for variable 'a'.

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

Add '0.25a' to each side of the equation.
-0.5 + 0.25a = -1.75 + -0.25a + 0.25a

Combine like terms: -0.25a + 0.25a = 0.00
-0.5 + 0.25a = -1.75 + 0.00
-0.5 + 0.25a = -1.75

Add '0.5' to each side of the equation.
-0.5 + 0.5 + 0.25a = -1.75 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 0.25a = -1.75 + 0.5
0.25a = -1.75 + 0.5

Combine like terms: -1.75 + 0.5 = -1.25
0.25a = -1.25

Divide each side by '0.25'.
a = -5

Simplifying
a = -5

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