X + 2x + x + 10 = 90
4x = 80
x = 20
Equations -
I like to find the decimal expression of the fractions, to make this easier.

Divide each sides by 0.6

Answer: 6/7
-2, 1/2, 1
Simplify down all the way and get your answer
Mark brainliest please
Answer:
Step-by-step explanation:
Let price of milgrade gas be x and price of lawnmower gas be y.
18x + 5y=59.51
14x+y=39.75
Isolate one variable and substitute to solve for other variable.