Answer:
y = 2x - 81
Step-by-step explanation:
x^2 - 49 = 0
Add 49 to both sides:
x^2 = 49
Take the square root of both sides:
X = 7
6. the answer is 6. because 3x what she has is equal to 18 all u do is divide. u get six.
1= 4/4 therefore 2=8/4
8/4 + 1/4 = 9/4
So Steve bought 9/4 of pizza total