Đáp án:
Giải thích các bước giải:
a) y x 5 = 1948 + 247
y x 5 = 2195
y = 2195 : 5
y = 439
b) y : 3 = 190 - 90
y : 3 = 100
y = 100 x 3
y = 300
c) y - 8357 = 3829 x 2
y - 8357 = 7658
y = 7658 + 8357
y = 16015
d) y x 8 = 182 x 4
y x 8 = 728
y = 728 : 8
y = 91
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a)
`y × 5 = 1948 + 247`
`y × 5= 2195`
`y = 2195 ÷ 5`
`y = 439`
b)
`y ÷ 3 = 190 - 90`
`y ÷ 3 = 100`
`y =300`
c)
`y - 8357 = 3829 × 2`
`y - 8357 = 7658`
`y = 7658 + 8357`
`y = 16015`
d)
`y × 8 = 182 × 4`
`y × 8 = 728`
`y = 728 ÷ 8`
`y = 91`
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