Answer:
10
Explanation:
→ Expand brackets
-5.4 + 0.55x = 0.05x - 0.4
→ Minus 0.05x from both sides
-5.4 + 0.5x = -0.4
→ Add 5.4 to both sides
0.5x = 5
→ Divide both sides by 0.05
x = 10
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