(72/80)x90=81
Divide seventy-two by eight and multiply it Ninety.
Answer:

Step-by-step explanation:
we just multiply numerator by numerator and denominator by denominator
3/4x22/7
66/28x2/1
132/28
4 20/28
4 5/7
Hopes this helps,please mark brainliest
Answer:
x = 11/2
Step-by-step explanation:
We would first put it in an equation
5x - 1 = 10 + 3x
We would first add 1 on both sides
5x = 11 + 3x
Then we subtract 3x on both sides
2x = 11
Divide both sides by 2
x = 11/2
The answer of your question is x - 4 y=8