Substitute...
5x + 7(-4) = 22
5x - 28 = 22
+ 28 + 28
5x = 50
__ ___
5 5
x = 10
Answer:
2,3,5,6,10
Step-by-step explanation:
The answer is 6.875 ish. not exact
The ratios are equivalent because you multiplied 18:4 by 2&3. And also you divided it by 2. I had the same homework!
The answer is 30 hope it helps