Substitution method
6x-7y=5,3x+y=-1

Step-by-step explanation:

Lets call

equation 1

equation 2

using equation 2, we would make y the subject of the formula as it would be easier

This would now be called our equation 3

Now the next step is to substitute equation 3 in equation 1

Divide both sides by 27

Substitute the value of x in equation 2

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

1 + (6 / x - 1)

step-by-step explanation:

divide using polynomial division.