-9(3b+10)=-5(5b+70)

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Solution for -9(3b+10)=-5(5b+70) equation:


Simplifying
-9(3b + 10) = -5(5b + 70)

Reorder the terms:
-9(10 + 3b) = -5(5b + 70)
(10 * -9 + 3b * -9) = -5(5b + 70)
(-90 + -27b) = -5(5b + 70)

Reorder the terms:
-90 + -27b = -5(70 + 5b)
-90 + -27b = (70 * -5 + 5b * -5)
-90 + -27b = (-350 + -25b)

Solving
-90 + -27b = -350 + -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.
-90 + -27b + 25b = -350 + -25b + 25b

Combine like terms: -27b + 25b = -2b
-90 + -2b = -350 + -25b + 25b

Combine like terms: -25b + 25b = 0
-90 + -2b = -350 + 0
-90 + -2b = -350

Add '90' to each side of the equation.
-90 + 90 + -2b = -350 + 90

Combine like terms: -90 + 90 = 0
0 + -2b = -350 + 90
-2b = -350 + 90

Combine like terms: -350 + 90 = -260
-2b = -260

Divide each side by '-2'.
b = 130

Simplifying
b = 130

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