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175+Xx12=12175
=>Xx12=12175-175
=>Xx12=12000
=>X=12000:12
=>X=1000
tick cho mình nha
a) 175+x*12=10175
x*12=10175-175
x*12=10000
x =10000/12
x =833.333...
b) x/26-157=14161
x/26 =14161+157
x/26 =14318
x =14318*26
x =372268
tranquynhnga
175 + 12x = 10175
12x = 10000
x = 10000/12
x = 2500/3
x/26 - 157 =14161
x/26 = 14318
x = 14318 . 26
x = 372268
a)12 x ( 367 + 82 ) = 82 x 12 + 12 x 367
b) ( 175 - 26 ) x 17 < 17 x 177 - 17 x 26
a)Vì 12 x ( 367 + 82 ) = 5 388;82 x 12 + 12 x 367 = 5 388
b)Vì ( 175 - 26 ) x 17 = 2 533;17 x 177 - 17 x 26 =2 567
a) 425 x 3475 + 425 x 6525
= 425 x (3475 + 6525)
= 425 x 10000
= 4250000
b) 175 x 1274 - 175 x 273 - 175
= 175 x 1274 - 175 x 273 - 175 x 1
= 175 x (1274 - 273 - 1)
= 175 x 1000
= 175000
`@` `\text {Ans}`
`\downarrow`
`A)`
`37 \times 46+37 \times 51+111`
`= 37 \times (46+51)+111`
`= 37 \times 97+111`
`= 3589 +111`
`= 3700`
`B)`
`35 \times 215-35 \times 210-175`
`= 35 \times (215-210)-175`
`= 35 \times 5-175`
`= 175-175=0`
`E)`
`76 \times 102-76 \times 2`
`= 76 \times (102-2)`
`= 76 \times 100`
`= 7600`
`C)`
`85 \times 94+85 \times 2 +170 \times 2`
`= 85 \times (94+2) + 170 \times 2`
`= 85 \times 96+170 \times 2`
`= 8160+340`
`= 8500`
`48 \times 56+28 \times 104`
`= 48 \times 28 \times 2+28 \times 104`
`= 28 \times (48 \times 2+104)`
`= 28 \times (96+104)`
`= 28 \times 200`
`= 5600`
`G)`
`206 \times 12-206-206`
`= 206 \times (12-1-1)`
`= 206 \times 10`
`= 2060`
a) 37 x 46 + 37 x 51 + 111
= 37 x ( 46 + 51 ) + 111
= 37 x 97 + 111
= 3589 + 111
= 3700
b) 35 x 215 - 35 x 210 - 175
= 35 x ( 215 - 210 ) - 175
= 35 x 5 - 175
= 175 - 175
= 0
e) 76 x 102 - 76 x 2
= 76 x ( 102 - 2 )
= 76 x 100
= 7600
c) 85 x 94 + 95 x 2 + 170 x 2
= 7990 + 2 x ( 95 + 170 )
= 7990 + 2 x 265
= 7990 + 530
= 8520
48 x 56 + 28 x 104
= 2688 + 2912
= 5600
g) 206 x 12 - 206 - 206
= 2472 - 206 - 206
= 2266 - 206
= 2060
\(174x1274-175x273-175\)
\(=221676-47775-175\)
\(=173726\)
175 x 54 + 525 x 15 + 175
= 175 x 54 + 175 x (3 x 15) + 175
= 175 x 54 + 175 x 45 + 175
= 175 x (54 + 45 + 1) = 175 x 100 = 17500
ét o ét
\(175+x\times12=12175\)
\(x\times12=12175-175\)
\(x\times12=12000\)
\(x=12000:12\)
\(x=1000\)