4=1.20b-7.20

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Solution for 4=1.20b-7.20 equation:


Simplifying
4 = 1.20b + -7.20

Reorder the terms:
4 = -7.20 + 1.20b

Solving
4 = -7.20 + 1.20b

Solving for variable 'b'.

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

Add '-1.20b' to each side of the equation.
4 + -1.20b = -7.20 + 1.20b + -1.20b

Combine like terms: 1.20b + -1.20b = 0.00
4 + -1.20b = -7.20 + 0.00
4 + -1.20b = -7.20

Add '-4' to each side of the equation.
4 + -4 + -1.20b = -7.20 + -4

Combine like terms: 4 + -4 = 0
0 + -1.20b = -7.20 + -4
-1.20b = -7.20 + -4

Combine like terms: -7.20 + -4 = -11.2
-1.20b = -11.2

Divide each side by '-1.20'.
b = 9.333333333

Simplifying
b = 9.333333333

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