Answer:
1
Step-by-step explanation:
Substitute the value of the variable into the expression and simplify.
4-2-1=1
Answer:
5 is the answer
Step-by-step explanation:
because it you add 5 to all the x values you get the y values
19) B
20) D
21) A
22) B
23) C
24) C
Answer:
x=2, x=-3, or x=3.5
Step-by-step explanation:
Make them all in 3 equations equal to 0. The number of brackets, the number of equations.