Answer:

Step-by-step explanation:
We have:

To solve, we will isolate the x variable. Therefore, subtract 7 from both sides:

Divide both sides by 2:

Take the square root of both sides. Since we’re taking an event root, we will need plus/minus. Therefore:

Therefore, our solutions are:

Answer:
20%
Step-by-step explanation:
- Start by changing the fraction to a decimal by diving the numerator by the denominator ( 1 divided by 5 ). That equals 0.2 .
- Change the decimal to a percent by multiplying it by 100% , or moving the decimal two places. That gives you 20% .
Lets use the distributive property to re-write this:-
18 + 36
2(9 + 18)
To make sure of this, lets solve
2*9 = 18
2*18 = 36
36 + 18 = 54
54 = 54 PERFECT
Answer: 2(9 + 18)