Create an expression without using parentheses that is equivalent to7(3x+x)

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin