0.5 + 0.2 = 0.2x - 0.4
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Step-by-step explanation:
0.5+0.2=0.2x-0.4
0.7=0.2x-0.4
0.7+0.4=0.2x
0.2x=1.1
x=1.1/0.2
x=11/2
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