-5-4(1+5b)=30-7b

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Solution for -5-4(1+5b)=30-7b equation:


Simplifying
-5 + -4(1 + 5b) = 30 + -7b
-5 + (1 * -4 + 5b * -4) = 30 + -7b
-5 + (-4 + -20b) = 30 + -7b

Combine like terms: -5 + -4 = -9
-9 + -20b = 30 + -7b

Solving
-9 + -20b = 30 + -7b

Solving for variable 'b'.

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

Add '7b' to each side of the equation.
-9 + -20b + 7b = 30 + -7b + 7b

Combine like terms: -20b + 7b = -13b
-9 + -13b = 30 + -7b + 7b

Combine like terms: -7b + 7b = 0
-9 + -13b = 30 + 0
-9 + -13b = 30

Add '9' to each side of the equation.
-9 + 9 + -13b = 30 + 9

Combine like terms: -9 + 9 = 0
0 + -13b = 30 + 9
-13b = 30 + 9

Combine like terms: 30 + 9 = 39
-13b = 39

Divide each side by '-13'.
b = -3

Simplifying
b = -3

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