Answer:
1) 4
2) 3
3) 9
4) 6
5) 3/4
Step-by-step explanation:
Answer:
C and D
Step-by-step explanation:
To determine which pairs are solutions, substitute the coordinates into the left side of the equation and if equal to the right side then they are solutions.
(7, - 2)
2(7) + 10(- 2) = 14 - 20 = - 6 ≠ 12 → (7, - 2) is not a solution
(- 5, - 4)
2(- 5) + 10(- 4) = - 10 - 40 = - 50 ≠ 12 → (- 5, - 4) is not a solution
(4, 
)
2(4) + 10() = 8 + 4 = 12 → hence solution
(- 5, 
)
2(- 5) + 10( ) = - 10 + 22 = 12 → hence solution
Answer:
6x + y = 1
y = 1 - 6x
7x + 2(1 - 6x) = -3 substitute 1 - 6x in for y
7x + 2 - 12x = -3 combine like terms
2 - 5x = -3 subtract 2 from both sides
-5x = -5 divide by -5
x = 1
Answer:
1: x + 5=12 ->
x=7
2: 7x = 21 -> x=3
3: b - 2/3 = 5/6 ->
x=3/2
4: 1/5m = 20 -> 100
5: 45 = 3(x + 1) -> x = 14
6: 22.5 = 1.5x -> x = 15
Step-by-step explanation:
Answer:
The correct answer is option one and option four.
Step-by-step explanation:
y=3x and y=-ax are equal because they are opposites and can match to the other by the same numbers. I hope you know what I mean by that, I prob didn't say it right. But the other two opstions are not correct because they are different kind of equations, (additions, subtraction, multiplication, and division) I hope you understand. Good luck on future questions!!
