4.5=-3(-2.5)+b

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Solution for 4.5=-3(-2.5)+b equation:


Simplifying
4.5 = -3(-2.5) + b

Multiply -3 * -2.5
4.5 = 7.5 + b

Solving
4.5 = 7.5 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
4.5 + -1b = 7.5 + b + -1b

Combine like terms: b + -1b = 0
4.5 + -1b = 7.5 + 0
4.5 + -1b = 7.5

Add '-4.5' to each side of the equation.
4.5 + -4.5 + -1b = 7.5 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + -1b = 7.5 + -4.5
-1b = 7.5 + -4.5

Combine like terms: 7.5 + -4.5 = 3
-1b = 3

Divide each side by '-1'.
b = -3

Simplifying
b = -3

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