A, x.138=2³.3² B, 231-(x-6)=1339:13 Question A, x.138=2³.3² B, 231-(x-6)=1339:13 in progress 0 Môn Toán Amity 4 years 2020-10-14T01:28:01+00:00 2020-10-14T01:28:01+00:00 2 Answers 122 views 0
Answers ( )
A . `x . 138 = 2^3 . 3^2`
`x . 138 = 8 . 9`
`x . 138 = 72`
`x = 72 : 138`
`x = 12/23`
B . `231 – ( x – 6 ) = 1339 : 13`
`231 – ( x – 6 ) = 103`
`( x – 6 ) = 231 – 103`
`(x – 6) = 128`
`x = 128 + 6`
`x = 134`
`@Chan`
Đáp án:
Giải thích các bước giải:
A) x. 138 = 2³.3²
x. 138 = 8.9
x. 138 = 72
x = 72: 138
x = 12/23
B) 231-(x-6) = 1339 :13
231-(x-6) = 103
x-6 = 231-103
x-6 = 128
x = 128+6
x = 134
@yin
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