Answer:
6
Step-by-step explanation:
when you substitute 3 in for x you get 3(3) - 3
solve the equation
3(3) = 9
9 - 3 = 6
Your answer is 6.
Substitute the value of the variable into the equation and simplify.
Answer: 1/2
I got it right.
x^2+y^2=16
i think so
D)
7x + 4 = 3x + 68
7x - 3x = 68 - 4
4x = 64
x = 64/4
x = 16
I Hope I've helped you.