Respostas
respondido por:
1
x+5x+12=60
x+5x=60-12
6x=48
x=48/6
x=8
6x+2x=64+8
8x=72
x=72/8
x=9
2x+5+12=60
2x=60-5-12
2x=43
x=43/2
x=21.5
12x+2x-45=4x+55
12x+2x-4x=55+45
10x=100
x=100/10
x=10
x+5x=60-12
6x=48
x=48/6
x=8
6x+2x=64+8
8x=72
x=72/8
x=9
2x+5+12=60
2x=60-5-12
2x=43
x=43/2
x=21.5
12x+2x-45=4x+55
12x+2x-4x=55+45
10x=100
x=100/10
x=10
respondido por:
1
x+5x+12=60 6x+2x=64+8 2X+5+12=60 12x+2x-45=4x+55
x+5x=60-12 8x=72 2X=60-5-12 12x+2x -4x=55+45
6x=48 x=72/8 2X=43 10x=100
x=48/6 x=9 X=43/2 x=100/10
x=8 x=21,5 x=10
x+5x=60-12 8x=72 2X=60-5-12 12x+2x -4x=55+45
6x=48 x=72/8 2X=43 10x=100
x=48/6 x=9 X=43/2 x=100/10
x=8 x=21,5 x=10
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