Answer:
Step-by-step explanation:
4.2 x + 5.6 < 7.2 - 8.3 x add '8.3 x' to both sides
12.5 x + 5.6 < 7.2 subtract 5.6 from both sides
12.5x < 1.6 Divide both sides by 12.5
x < 1.6 / 12.5
x < .128 Done.
