Answer:
Explanation:
49x+2=48x
-2 from both sides
We now have: 49x=48x-2
-48 from both sides
we now have: x=-2
2nd one:8x+1=21x+5
-1 from both sides
We have:8x=21x+4
-21 from both sides
we have: -13x=5
divide both sides by -13
we now have:.384
When plugged into x, equals: 5
3rd one:
12x+15=13x+5
-15 from both sides
We have: 12x=13x-10
-13 from both sides
we have:-x=-10
divided both sides by -1
x=10
hopefully this helps i havent done them in a while sorry