3(2b-7)-2(b-3)=-9

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Solution for 3(2b-7)-2(b-3)=-9 equation:


Simplifying
3(2b + -7) + -2(b + -3) = -9

Reorder the terms:
3(-7 + 2b) + -2(b + -3) = -9
(-7 * 3 + 2b * 3) + -2(b + -3) = -9
(-21 + 6b) + -2(b + -3) = -9

Reorder the terms:
-21 + 6b + -2(-3 + b) = -9
-21 + 6b + (-3 * -2 + b * -2) = -9
-21 + 6b + (6 + -2b) = -9

Reorder the terms:
-21 + 6 + 6b + -2b = -9

Combine like terms: -21 + 6 = -15
-15 + 6b + -2b = -9

Combine like terms: 6b + -2b = 4b
-15 + 4b = -9

Solving
-15 + 4b = -9

Solving for variable 'b'.

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

Add '15' to each side of the equation.
-15 + 15 + 4b = -9 + 15

Combine like terms: -15 + 15 = 0
0 + 4b = -9 + 15
4b = -9 + 15

Combine like terms: -9 + 15 = 6
4b = 6

Divide each side by '4'.
b = 1.5

Simplifying
b = 1.5

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