3x -1 = 11
3x = 11 + 1
3x = 12
x = 4
I take it by, x2 + x, you mean 2x + x, since x = 4, then
2x + x = 2(4) + (4) = 8 + 4 =12
Answer:
A rate of change is a rate that describes how one number changes in relation to another number.
Step-by-step explanation:
is this good or does it need to be longer?
Answer:
4
Step-by-step explanation:
rise/run = slope
As it goes to the left or adds by one, it goes up by 4
4/1
Step-by-step explanation:
there is the answer to your question