-3(6+1)=-4(2+b)

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Solution for -3(6+1)=-4(2+b) equation: 


Simplifying
-3(6 + 1) = -4(2 + b)

Combine like terms: 6 + 1 = 7
-3(7) = -4(2 + b)

Multiply -3 * 7
-21 = -4(2 + b)
-21 = (2 * -4 + b * -4)
-21 = (-8 + -4b)

Solving
-21 = -8 + -4b

Solving for variable 'b'.

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

Add '4b' to each side of the equation.
-21 + 4b = -8 + -4b + 4b

Combine like terms: -4b + 4b = 0
-21 + 4b = -8 + 0
-21 + 4b = -8

Add '21' to each side of the equation.
-21 + 21 + 4b = -8 + 21

Combine like terms: -21 + 21 = 0
0 + 4b = -8 + 21
4b = -8 + 21

Combine like terms: -8 + 21 = 13
4b = 13

Divide each side by '4'.
b = 3.25

Simplifying
b = 3.25

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