7(1+-3b)=-98

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Solution for 7(1+-3b)=-98 equation: 


Simplifying
7(1 + -3b) = -98
(1 * 7 + -3b * 7) = -98
(7 + -21b) = -98

Solving
7 + -21b = -98

Solving for variable 'b'.

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

Add '-7' to each side of the equation.
7 + -7 + -21b = -98 + -7

Combine like terms: 7 + -7 = 0
0 + -21b = -98 + -7
-21b = -98 + -7

Combine like terms: -98 + -7 = -105
-21b = -105

Divide each side by '-21'.
b = 5

Simplifying
b = 5

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