0.2(10+5b)+3b=-2

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Solution for 0.2(10+5b)+3b=-2 equation:


Simplifying
0.2(10 + 5b) + 3b = -2
(10 * 0.2 + 5b * 0.2) + 3b = -2
(2 + 1b) + 3b = -2

Combine like terms: 1b + 3b = 4b
2 + 4b = -2

Solving
2 + 4b = -2

Solving for variable 'b'.

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

Add '-2' to each side of the equation.
2 + -2 + 4b = -2 + -2

Combine like terms: 2 + -2 = 0
0 + 4b = -2 + -2
4b = -2 + -2

Combine like terms: -2 + -2 = -4
4b = -4

Divide each side by '4'.
b = -1

Simplifying
b = -1

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