Explicación paso a paso:
1) 12x+8=4x+16
12x-4x= 16-8
8x= 8
x= 1
2) 15X + 10 = 6X + 28
15x-6x=28-10
9x=18
x=2
3) 24x+16 = 8X + 32
24x-8x=32-16
16x= 16
X=1
4. 30X + 20 = 12X + 56
30x-12x=56-20
18x= 36
X=2
5. 8X + 24 = 4X + 32
8x-4x=32-24
4x= 8
6. 6X +18 = 3X + 27
6x-3x=27-18
3x= 9
X=3
7. 25X + 20 = 20x + 30
25x-20x=30-20
5x= 10
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Verified answer
Explicación paso a paso:
1) 12x+8=4x+16
12x-4x= 16-8
8x= 8
x= 1
2) 15X + 10 = 6X + 28
15x-6x=28-10
9x=18
x=2
3) 24x+16 = 8X + 32
24x-8x=32-16
16x= 16
X=1
4. 30X + 20 = 12X + 56
30x-12x=56-20
18x= 36
X=2
5. 8X + 24 = 4X + 32
8x-4x=32-24
4x= 8
X=2
6. 6X +18 = 3X + 27
6x-3x=27-18
3x= 9
X=3
7. 25X + 20 = 20x + 30
25x-20x=30-20
5x= 10
X=2