Answer: D.
a p e x
this is a hard one, I tried my best. let me know in the comments if I am right. :)
Step-by-step explanation:
(1,-4)
x=1, y=-4.
Solve for the first variable in one of the equations, then substitute the result into the other equation.
156 dollars because 13 times 12 (months)
equals 156
Multiply both sides of the second equation by 4. That will give you -4x in the second equation which when added to 4x of the first equation will eliminate x.
Second equation:
-x + 3y = 6
Multiply the second equation by 4 on both sides:
-4x + 12y = 26
Answer:6x+1-3x-1
negative and negative= positive
3x+2
answer: 3x+2
Step-by-step explanation: