Answer:
Let's solve your equation step-by-step.
4(u+1)=12
Step 1: Simplify both sides of the equation.
4(u+1)=12
(4)(u)+(4)(1)=12(Distribute)
4u+4=12
Step 2: Subtract 4 from both sides.
4u+4โ4=12โ4
4u=8
Step 3: Divide both sides by 4.
4u/4=8/4
u=2