Answer:

Step-by-step explanation:
1. Regroup terms.

2. Add 1 to both sides.

3. Simplify 3x + 3 + 1 to 3x + 4.

4. Subtrect 3x from both sides.

5. Simplify 4x - 3x to x.

Therefor, the answer is, x = 4.
% increase = Increase ÷ Original Number × 100.<span>
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Answer:
2160ft³
Step-by-step explanation:
V=whl=10·18·12=2160ft³
Answer:
7800
Step-by-step explanation: