3b+4(-1-4b)=87

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Solution for 3b+4(-1-4b)=87 equation:


Simplifying
3b + 4(-1 + -4b) = 87
3b + (-1 * 4 + -4b * 4) = 87
3b + (-4 + -16b) = 87

Reorder the terms:
-4 + 3b + -16b = 87

Combine like terms: 3b + -16b = -13b
-4 + -13b = 87

Solving
-4 + -13b = 87

Solving for variable 'b'.

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

Add '4' to each side of the equation.
-4 + 4 + -13b = 87 + 4

Combine like terms: -4 + 4 = 0
0 + -13b = 87 + 4
-13b = 87 + 4

Combine like terms: 87 + 4 = 91
-13b = 91

Divide each side by '-13'.
b = -7

Simplifying
b = -7

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