2+.50(a-1)=-1

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Solution for 2+.50(a-1)=-1 equation: 


Simplifying
2 + 0.50(a + -1) = -1

Reorder the terms:
2 + 0.50(-1 + a) = -1
2 + (-1 * 0.50 + a * 0.50) = -1
2 + (-0.5 + 0.50a) = -1

Combine like terms: 2 + -0.5 = 1.5
1.5 + 0.50a = -1

Solving
1.5 + 0.50a = -1

Solving for variable 'a'.

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

Add '-1.5' to each side of the equation.
1.5 + -1.5 + 0.50a = -1 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + 0.50a = -1 + -1.5
0.50a = -1 + -1.5

Combine like terms: -1 + -1.5 = -2.5
0.50a = -2.5

Divide each side by '0.50'.
a = -5

Simplifying
a = -5

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