Question

6×+500=×+5(500)

2×+10=38

3(m+4)+8=2+m

20×+19-5×=7×+31+2×

Answer 1

6x+500=x+5(500)
6x-5=25.000-500
5x=24.500
x=24.500/5
x=4.900

2x+10=38
2x=38-10
2x=28
x=14

3(m+4)+8=2+m
3m+12+8=2+m
3m-m=2-12-8
2m=-18
m=-9

20x+19-5x=7x+31+2x
20x-5x-7x-2x=31-19
6x=12
x=12/6
x=2