Answer:

Step-by-step explanation:
Let's solve:

Step 1: Simplify both sides of the equation.

Step 2: Add 3x to both sides.

Step 3: Subtract 4 from both sides.

Step 4: Divide both sides by -1.

Therefore, the answer will be x = 4.
Answer:
50.2 square cm
Step-by-step explanation:
Diameter = 8 cm
Radius = 8/2 = 4 cm

Step-by-step explanation:
Substitute known values of P and Q to solve for k: ... If A varies jointly with b and h and A=6 when b=2 and h=9, find b when A=7 and h=3. ... 140 pounds per square foot, find the volume when the pressure is 185 pounds per square foot
sorry all i got
627 and I need to hit 20 characters and ur welcome