Respuesta :
Answer:
x = 40
Step-by-step explanation:
x - [tex]\frac{2}{3}[/tex]y = 30 Replace y with 15
x - [tex]\frac{2}{3}[/tex](`15) = 30 [tex]\frac{2}{3}[/tex][tex](\frac{15}{1}[/tex]) = [tex]\frac{30}{10}[/tex] = 3
x - 10 = 30 Add 10 to both sides of the equation
x = 40
Check:
x - [tex]\frac{2}{3}[/tex]y = 30
40 - [tex]\frac{2}{3}[/tex](15) =30
40 - 10 = 30
Answer:
x would be equal to 160.
Step-by-step explanation:
When y=15, [tex]\frac{2}{3}*15=10[/tex].
So, we can rephrase this as [tex]\frac{1}{4}x-10=30[/tex].
Because we need the end result to be equal to 30, we need to get [tex]40-10=30.[/tex]
Because we need to make 40 with the fraction [tex]\frac{1}{4}[/tex], we can have x be equal to 160, and we would get [tex]\frac{160}{4}=40[/tex].
So, we know that x = 160.
