Answer:
Step-by-step explanation:
-3x + 3y = 6.......(1)
y= 4x + 5............(2)
Putting (2) in (1)
-3x + 3(4x + 5) = 6
-3x + 12x + 15 = 6
9x = 6 -15
9x = -9
x = -9/9
x = -1
Putting x in (2)
y= 4x + 5
y = 4(-1) + 5
y = -4 + 5
y = 1
I´m pretty sure that the terms would just be 3, 4, and 5. It depends what kind of problem it is.
A larger sample will give more reliable information
Answer: Basically you do the opposite of each sign to isolate the variable on one side.
Step-by-step explanation:
x + 9 = 17
-9 from each side
x = 8
x - 6 = 25
+ 6 to each side
x = 31
8x = 48
Divide each side by 8
x = 6
x/4 = 7
Multiply each side by 4
x = 28
Answer:
f(-1)=(-1)²+-1=1-1=0
i think it is your answer