Question

School X and School Y play eachother in a competiton.

School X has eight more points than School Y
School X has three times as many points than School Y

How many points does each school have?

Answer 1

school x = 12

school y = 4

Explanation:

School X has eight more points than School Y.

School X has three times as many points as School Y .

Writing these statements in terms of equation

x = y + 8

x = 3 y

Substituting the value of x in y, we get

3 y = y + 8

Taking variable on left side of equation

3 y – y = 8 (subtract y from both sides)

2 y= 8 (divid 2 from both sides)

y = 4

then plug in y to the first equation

x= y + 8

x= 4 + 8

x= 12