0.4-0.1(b-100)=70

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Solution for 0.4-0.1(b-100)=70 equation: 


Simplifying
0.4 + -0.1(b + -100) = 70

Reorder the terms:
0.4 + -0.1(-100 + b) = 70
0.4 + (-100 * -0.1 + b * -0.1) = 70
0.4 + (10 + -0.1b) = 70

Combine like terms: 0.4 + 10 = 10.4
10.4 + -0.1b = 70

Solving
10.4 + -0.1b = 70

Solving for variable 'b'.

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

Add '-10.4' to each side of the equation.
10.4 + -10.4 + -0.1b = 70 + -10.4

Combine like terms: 10.4 + -10.4 = 0.0
0.0 + -0.1b = 70 + -10.4
-0.1b = 70 + -10.4

Combine like terms: 70 + -10.4 = 59.6
-0.1b = 59.6

Divide each side by '-0.1'.
b = -596

Simplifying
b = -596

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