To solve the equation 7b - 20 = 3b + 12, first we can combine like terms by subtracting 3b from both sides:
7b - 3b - 20 = 3b - 3b + 12
Simplifying the equation, we get:
4b - 20 = 12
To isolate the variable b, we can add 20 to both sides:
4b - 20 + 20 = 12 + 20
Simplifying further:
4b = 32
Finally, we can solve for b by dividing both sides by 4:
4b/4 = 32/4
b = 8
Therefore, the solution to the equation is b = 8.
7b-20=3b+12
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