3.5x+1=3x+4?

OK

3.5x + 1= 3x +4 ; isolate x on one side (subtract 3x from both)
.5x +1 = 4
.5x = 3
x = 6

Proof
3.5(6) + 1 = 3(6) + 4 ??
21 + 1 = 18 + 4 ??
22 = 22 YES

Hope that helps.

0.5 x = 3
x = 6

3.5X-3X=4-1
0.5X=3
X=3/0.5
X=6
ans X=6

3 divided by 0.5 x=6

3.5x + 1 = 3x + 4
3.5x - 3x = -1 + 4
0.5x = 3
x = 3/0.5
x = 6

x=6