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Answer:
4x/5 + 3x/4 = 20
16x + 15x / 20 =20
31x=400
x=400/31
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Answered by
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Answer:
Step-by-step explanation:
4/5x+3/4x=20
take lcm
20x+15x/20=20
35x=400
x=400/35=11.3
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