Answer:
x = 8
Step-by-step explanation:
0.4x - 1.2 = 0.15x + 0.8
Subtract 0.15x from both sides
0.4x - 1.2 -0.15x = 0.15x + 0.8 - 0.15x {Combine like terms}
0.4x - 0.15x - 1.2 = 0.8
0.25x - 1.2 = 0.8 {Add 1.2 to both sides}
0.25x = 0.8 + 1.2
0.25x = 2.0 {Divide both sides by 0.25}
x = 2/0.25
[tex]x=\frac{2*100}{0.25*100}\\\\x=\frac{200}{25}\\\\x=8[/tex]
