Y=-x+6
Try -6 on X, -(-6)+6=12... wrong
Try -3 on X, -(-3)+6=9... wrong
Try 2 on X, -2+6=4... correct, you got X=2, Y=4
Try 4 on X, -4+6=2... correct, you got X=4, Y=2
Try 7 on X, -7+6=1... wrong
The lcm he should use is 12, for the denominator.
7a+b-4a-2b
=3a-b
Add the coefficients of the ones with the same letter.
Answer:
5
Step-by-step explanation:
3y - 11 = 4
+11 +11
3y= 15
/3 /3
y = 5