4.2=b-2.5

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Solution for 4.2=b-2.5 equation:


Simplifying
4.2 = b + -2.5

Reorder the terms:
4.2 = -2.5 + b

Solving
4.2 = -2.5 + 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.
4.2 + -1b = -2.5 + b + -1b

Combine like terms: b + -1b = 0
4.2 + -1b = -2.5 + 0
4.2 + -1b = -2.5

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -1b = -2.5 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -1b = -2.5 + -4.2
-1b = -2.5 + -4.2

Combine like terms: -2.5 + -4.2 = -6.7
-1b = -6.7

Divide each side by '-1'.
b = 6.7

Simplifying
b = 6.7

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