3+(-1)(1.5)=a

Solution for 3+(-1)(1.5)=a equation:

Simplifying
3 + (-1)(1.5) = a

Multiply -1 * 1.5
3 + -1.5 = a

Combine like terms: 3 + -1.5 = 1.5
1.5 = a

Solving
1.5 = a

Solving for variable 'a'.

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

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

Combine like terms: a + -1a = 0
1.5 + -1a = 0

Add '-1.5' to each side of the equation.
1.5 + -1.5 + -1a = 0 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + -1a = 0 + -1.5
-1a = 0 + -1.5

Combine like terms: 0 + -1.5 = -1.5
-1a = -1.5

Divide each side by '-1'.
a = 1.5

Simplifying
a = 1.5