The answer is -2. Since you want to leave your x alone with the number you have to move the 6 to the other side. Now it has become a -6 rather than a 6. It is now -3x=6. (It is 6 because since you removed 6 from the 12). You now wish to leave the x alone so you have to divide by -3. (-3x/-3=6/-3). It should equal to -2. Remember that it is a negative number you are dividing by so you should make the answer negative since they are different signs!
Answer:
Step-by-step explanation:
Let the three consecutive integers be x, x + 2 and x + 4
<u>So, the given condition is:</u>
x + x + 2 + x + 4 = 129
3x + 6 = 129
Subtract 6 to both sides
3x = 129 - 6
3x = 123
Divide 3 to both sides
x = 123/3
x = 41
<u>So, the integers are:</u>
x = 41
x + 2 = 41 + 2 = 43
x + 4 = 41 + 4 = 45
Hope this helped!
<h3>~AH1807</h3>
Since 2 2/5 is equal to 12/5, (12/5)/(1/5), or 12 cubes can fit along the length of the brick.
Answer:
x=3
Step-by-step explanation:
simplify first
4-1=3
X+3=6
next you want to get x by itself
X+3-3=6-3
what you do to one side you must do to the other
X=3
Answer:
(2, 13)
Step-by-step explanation:
Since they both equal y, you can equal them to each other.
8x - 3 = 2x + 9
Subtract 2x from both sides.
6x - 3 = 9
Add 3 to both sides.
6x = 12
Now divide 6 on both sides.
x = 2
Now that we have found x, we need to find y. Just plug in x to the equations.
y = 2(2) + 9
y = 4 + 9
y = 13
Now, if the next equal has the same y, then both are true.
8(2) -3 = y
16-3=y
13 = y
So therefor, both x and y are true.