Answer:

Step-by-step explanation:
y = 3 - xy
Let x = 1
y = 3 - (1)y
Expand brackets.
y = 3 - y
Add y to both sides.
2y = 3
Divide both sides by 2.
y = 3/2
(7*X)-2=3 There's a nice equation
Answer: If the first one is addition, which I'm pretty sure it is, the answer is
1 1/10
For the second problem, I'm pretty sure its subtraction, so the answer is 1/9.
Step-by-step explanation:
<span>5 times the sum of a and b
= 5(a+b)
= 5a + 5b</span>