Answer: Let's solve your equation step-by-step.
3(3+4k)=45
Step 1: Simplify both sides of the equation.
3(3+4k)=45
(3)(3)+(3)(4k)=45(Distribute)
9+12k=45
12k+9=45
Step 2: Subtract 9 from both sides.
12k+9−9=45−9
12k=36
Step 3: Divide both sides by 12.
12k/12 = 36/12
k=3
Answer:
k=3
