1: 5x =8x - 15
15=8x- 5x
15= 3x
x= 15/3
x=5
2: 3x +1:x+9
3x-x:9-1
2x:8
x:8/2
x=4
3: 3x+ 18=x + 42
3x-x=42-18
2x=24
x=24/2
x=12
4: x= 20
5: x=4
6: x=4
7: x=6
8: x=10
9: x=44/2
10: x=7
explicación :
espero te ayude!
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1: 5x =8x - 15
15=8x- 5x
15= 3x
x= 15/3
x=5
2: 3x +1:x+9
3x-x:9-1
2x:8
x:8/2
x=4
3: 3x+ 18=x + 42
3x-x=42-18
2x=24
x=24/2
x=12
4: x= 20
5: x=4
6: x=4
7: x=6
8: x=10
9: x=44/2
10: x=7
explicación :
espero te ayude!