Step-by-step explanation:
<u>Use distributive property:</u>
3x+6=4x+4
<u>Eliminate one variable:</u>
Subtract 3x from both sides.
6=x+4
<u>Subtract 4 from both sides:</u>
2=x.
B is correct.
Answer:
20
Step-by-step explanation:
2x - 5 = x + 15
2x - x = 5 + 15
x = 20
Answer:
It costs $51
Expression:
16x = 68
12x = ?
Step-by-step explanation:
Lets first find out how much one sq. ft. of flooring costs:
16x = $68
x = $68/16 = $4.25
Next, lets multiply the unit rate by 12 to find the answer:
12x = Answer
12 * (4.25) = $51