Answer:
x = 3.8
Step-by-step explanation:
0.18(5x – 4) = 0.5x + 0.8
→ Expand out 0.18(5x – 4)
0.9x - 0.72 = 0.5x + 0.8
→ Multiply everything by 100 to get rid of the decimals
90x - 72 = 50x + 80
→ Minus 50x from both sides to collect the x terms
40x - 72 = 80
→ Add 72 to both sides to isolate 40x
40x = 152
→ Divide both sides by 40 to isolate x
x = 3.8
