Question

An equation is shown below:

Answer 1

1. Distribute the 4 with (2x-5)
2. Then add 15 to -20
3. Isolate x by adding 5 to the other side of the equal sign
4. Finally divide by 8 on both sides

Answer 2

I'm assuming that your solving for x...

4(2x-5)+15=11
First you want to distribute the 4 into the parenthesis.
4*2x   4*-5
8x       -20
8x-20+15=11
Next combine like terms.
-20+15
-5
8x-5=11
Next step would be getting the x alone so add five to both sides.
8x-5=11
    +5  +5
8x=16
Finally, furthering the previous step, you divide each side by 8.
8x=16
/8    /8
x=2