Answer:
For 7m^2: 8.4
For .5m^2: .6
For 12 liters of paint: 10m^2
and for 6.6: 5.5m^2
Answer:
$2.25
Step-by-step explanation:
You set one of the variables equal to the other variable then plug it in to the other equation and find the value of the other to use to find for that one.
Distribute on the left
3x-15=7x
Subtract 3x from both sides
-15= 4x
Divide both sides by 4
-15/4= x
Final answer: x=-15/4 or -3.75