Start off by combining like terms (your y's).
7y - 6y - 10 = 13
y - 10 = 13
Now you need to get y by itself so add 10 to both sides
y - 10 = 13
+10 +10
y = 23
Answer:
0.84
Step-by-step explanation:
25 x b = 21
b= 21/25
b= 0.84
Answer:
Step-by-step explanation:
Simply plug in a 3 where you see an x in the function:
so
f(3) = 3(9) - 7 and
f(3) = 27 - 7 so
f(3) = 20