A line has a slope of –3 and a y-intercept of 3. A coordinate plane.

What is the x-intercept of the line?
–9
–1
1
9

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

This is about circle theorems. someone asap : (

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?