Solve for the unknown in the equation.
6B + 2B – 7 = 25
Add the known values to both sides of the equation.
6B + 2B – 7 + (7) = 25 + (7)
6B + 2B = 32
Combine the unknown-value addends.
8B = 32
Divide both sides of the equation by the known factor to isolate the unknown value.
B = 4
Check the solution by substituting the answer in the original equation and verifying that a true statement results.
The answer checks, so the solution of the equation is 4.