Answer:
Step 1 is ya answer!!! UwU
Step-by-step explanation:
Sorry if im wrong!!! T>T But it should be right!!! :D
75x + 90(15-x)=88(15)
75x+1350-90x = 1320
-15x + 1350 = 1320
-15x= -30
x=2
the amount of 75 octane is 2 gallons
the amount of 90 octane is 13 gallons
Hope this helps.
You simply do it the same way as a positive number, just with a negative sign in front :)
