Solve each of the following equations and check you answers
1. 2x-3=7 2. 3x+5-x=x-3
3. 5x-(x+1)=6-2x 4. 0.5x-5=x+4
2x-3=7
Add 3 to each side.
2x=10
Divide by 2 on each side.
x=5
3x+5-x=x-3
First, add x on each side.
3x+5=2x-3
Now, subtract 2x from each side.
x+5=-3
Finally, subtract 5 from each side.
x=-8
5x-(x+1)=6-2x
First, solve 5x-(x+1)
4x-1=6-2x
Then, add 2 x on each side.
6x-1=6
Then, add 1 to each side.
6x=7
Finally, divide by 6 on each side.
x=1 1/6
0.5x-5=x+4
Subtract 0.5x from each side.
-5=0.5x+4
Next, subtract 4 from each side.
-9=0.5x
Finally, multiply by 2 on each side.
x=-18
Note:
Make sure that you actually give these problems a try! Don't just post your entire homework page on here! :-P