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4x + 8y =40 when y=0.8?
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4x + 8y =40 when y=0.8?

User Onurgule
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4x + 8y =40
4x + 8* 0.8 =40
4x + 6.4 =40
4x = 40 - 6.4
4x = 33.6
x = 33.6/4
x = 8.4
User Sykora
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