2-0.2(10a-5)=-a-1

Solution for 2-0.2(10a-5)=-a-1 equation:

Simplifying
2 + -0.2(10a + -5) = -1a + -1

Reorder the terms:
2 + -0.2(-5 + 10a) = -1a + -1
2 + (-5 * -0.2 + 10a * -0.2) = -1a + -1
2 + (1 + -2a) = -1a + -1

Combine like terms: 2 + 1 = 3
3 + -2a = -1a + -1

Reorder the terms:
3 + -2a = -1 + -1a

Solving
3 + -2a = -1 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
3 + -2a + a = -1 + -1a + a

Combine like terms: -2a + a = -1a
3 + -1a = -1 + -1a + a

Combine like terms: -1a + a = 0
3 + -1a = -1 + 0
3 + -1a = -1

Add '-3' to each side of the equation.
3 + -3 + -1a = -1 + -3

Combine like terms: 3 + -3 = 0
0 + -1a = -1 + -3
-1a = -1 + -3

Combine like terms: -1 + -3 = -4
-1a = -4

Divide each side by '-1'.
a = 4

Simplifying
a = 4