"3 miles below sea level" may be written as -3. The negative indicates you are below sea level. Going above sea level means the value would be positive.
"earning 45 dollars" can be written as +45 or simply 45. If you lost 45 dollars, then it would be -45. If you are in debt 45 dollars, then it would be -45.
"moving back 5 spaces" is represented by -5 whereas moving forward 5 spaces is +5 or simply 5.
You can using any equation you want to solve for one of the variables. For instance, if you want to solve for x you turn one of the equations so y is by its self
<span>
2x + 3y = 5
4x - y =3
I am going to use </span>4x - y =3
-y = -4x + 3
y = 4x -3
Now you can substitute 4x - 3 for y in 2x + 3y = 5 and solve for x
2x + 3y = 5
2x + 3(4x - 3) = 5
Answer:
1 1/21
Step-by-step explanation:
let's make the first fraction (2 4/9)combined with the number, times 2*9=18 add that to 4= 22/9 now times across 22*3=66 and 9*7=63 we will get 66/63 simplify 1 3/63>1 1/21
Answer:
Step-by-step explanation:
This problem requires subtraction, then division.. The first step is to add 9.5 to each side of the inequality. This isolates 6x on one side and makes the equation easier to understand:
Next, you need to divide each side by 6 to get your answer:
As a little bonus tip, if you ever end up dividing each side by a negative number, you MUST reverse the sign.
Answer:
Ye im pretty sure your right
Step-by-step explanation:
