Đáp án+Giải thích các bước giải:
e)
`(50%x+1 3/4):(-2)/3=2 1/4`
`->(1/2x+7/4):(-2)/3=9/4`
`->1/2x+7/4=9/4 *(-2)/3`
`->1/2x+7/4=(-3)/2`
`->1/2x=(-3)/2-7/4`
`->1/2x=(-13)/4`
`->x=(-13)/4:1/2`
`->x=(-13)/2`
Vậy `x=(-13)/2`
Đáp án:
X=-13/2
Giải thích các bước giải:
(50% . x +7/4):-2/3=9/4
⇔1/2x+7/4=-3/2 (Lấy 9/4 nhân vs -2/3)
⇔1/2x=-13/4 (lấy -3/2-7/4)
⇔x=-13/2
Vậy x=-13/2 Ht
làm từ câu số 3 ạ GIÚP MK VS MK CẦN GẤP
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GIÚP MÌNHHH VỚIII Ạ, MÌNH CẦN GẤP
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