18. What is the
y = -2x + 7
y = -3

what is x?

Step-by-step explanation:

X = 5

Step-by-step explanation:

Input the y into the equation:

-3 = -2x + 7

Subtract 7 on both sides:

-10 = -2x

Divide -2 on both sides:

5 = x

Hope this helps :)

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.