làm nhanh giúp v ak^^
1/x+6=4x-3
2/2x+5=8x-10
3/3x-7=4x+9
4/6x+5=8x-10
5/4x+2=3x+6
6/5x+15=4x-9
7/2x+8=6x+6
8/4x-7=5x+10
9/6x-3=7x+2
10/6x+8=5x+15
làm nhanh giúp v ak^^
1/x+6=4x-3
2/2x+5=8x-10
3/3x-7=4x+9
4/6x+5=8x-10
5/4x+2=3x+6
6/5x+15=4x-9
7/2x+8=6x+6
8/4x-7=5x+10
9/6x-3=7x+2
10/6x+8=5x+15
Giải thích các bước giải:
$1)x+6=4x-3$
$⇔x-4x=-6-3$
$⇔-3x=-9$
$⇔x=3$
$2)2x+5=8x-10$
$⇔2x-8x=-5-10$
$⇔-6x=-15$
`⇔x=5/2`
$3)3x-7=4x+9$
$⇔3x-4x=9+7$
$⇔-x=16$
$⇔x=-16$
$4)6x+5=8x-10$
$⇔6x-8x=-5-10$
$⇔-2x=-15$
`⇔x=15/2`
$5)4x+2=3x+6$
$⇔4x-3x=6-2$
$⇔x=4$
$6)5x+15=4x-9$
$⇔5x-4x=-15-9$
$⇔x=-24$
$7)2x+8=6x+6$
$⇔2x-6x=6-8$
$⇔-4x=-2$
`⇔x=1/2`
$8)4x-7=5x+10$
$⇔4x-5x=7+10$
$⇔-x=17$
$⇔x=-17$
$9)6x-3=7x+2$
$⇔6x-7x=3+2$
$⇔-x=5$
$⇔x=-5$
$10)6x+8=5x+15$
$⇔6x-5x=15-8$
$⇔x=7$
Học tốt!!!
Đáp án:
Giải thích các bước giải:
1/ `x+6=4x-3`
`-3x=-9`
`x=3`
Vậy `x=-3`
2/ `2x+5=8x-10`
`-6x=-15`
`x=5/2`
Vậy `x=5/2`
3/ `3x-7=4x+9`
`-x=16`
`x=-16`
Vậy `x=-16`
4/ `6x+5=8x-10`
`-2x=-15`
`x=15/2`
Vậy `x=15/2`
5/ `4x+2=3x+6`
`x=4`
Vậy `x=4`
6/ `5x+15=4x-9`
`x=-24`
Vậy `x=-24`
7/ `2x+8=6x+6`
`-4x=-2`
`x=1/2`
Vậy `x=1/2`
8/ `4x-7=5x+10`
`-x=17`
`x=-17`
Vậy `x=-17`
9/ `6x-3=7x+2`
`-x=5`
`x=-5`
Vậy `x=-5`
10/ `6x+8=5x+15`
`x=7`
Vậy `x=7`