=-3(10b+10)+5(1b+2)

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Solution for =-3(10b+10)+5(1b+2) equation:


Simplifying
0 = -3(10b + 10) + 5(1b + 2)

Reorder the terms:
0 = -3(10 + 10b) + 5(1b + 2)
0 = (10 * -3 + 10b * -3) + 5(1b + 2)
0 = (-30 + -30b) + 5(1b + 2)

Reorder the terms:
0 = -30 + -30b + 5(2 + 1b)
0 = -30 + -30b + (2 * 5 + 1b * 5)
0 = -30 + -30b + (10 + 5b)

Reorder the terms:
0 = -30 + 10 + -30b + 5b

Combine like terms: -30 + 10 = -20
0 = -20 + -30b + 5b

Combine like terms: -30b + 5b = -25b
0 = -20 + -25b

Solving
0 = -20 + -25b

Solving for variable 'b'.

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

Add '25b' to each side of the equation.
0 + 25b = -20 + -25b + 25b
Remove the zero:
25b = -20 + -25b + 25b

Combine like terms: -25b + 25b = 0
25b = -20 + 0
25b = -20

Divide each side by '25'.
b = -0.8

Simplifying
b = -0.8

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