3(b-10)=-7+8(-b+4)

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Solution for 3(b-10)=-7+8(-b+4) equation:


Simplifying
3(b + -10) = -7 + 8(-1b + 4)

Reorder the terms:
3(-10 + b) = -7 + 8(-1b + 4)
(-10 * 3 + b * 3) = -7 + 8(-1b + 4)
(-30 + 3b) = -7 + 8(-1b + 4)

Reorder the terms:
-30 + 3b = -7 + 8(4 + -1b)
-30 + 3b = -7 + (4 * 8 + -1b * 8)
-30 + 3b = -7 + (32 + -8b)

Combine like terms: -7 + 32 = 25
-30 + 3b = 25 + -8b

Solving
-30 + 3b = 25 + -8b

Solving for variable 'b'.

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

Add '8b' to each side of the equation.
-30 + 3b + 8b = 25 + -8b + 8b

Combine like terms: 3b + 8b = 11b
-30 + 11b = 25 + -8b + 8b

Combine like terms: -8b + 8b = 0
-30 + 11b = 25 + 0
-30 + 11b = 25

Add '30' to each side of the equation.
-30 + 30 + 11b = 25 + 30

Combine like terms: -30 + 30 = 0
0 + 11b = 25 + 30
11b = 25 + 30

Combine like terms: 25 + 30 = 55
11b = 55

Divide each side by '11'.
b = 5

Simplifying
b = 5

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