Explicación paso a paso:
1.- x/8 = 5/4
x4 = 8 × 5
x4 = 40
x = 10m
2.- (x+2)/4 = 4/2
x+2 = 2
x + 2 = 2
x = 2 - 2
x = 0m
3.- 5/3 = 20/x
5x = 20 × 3
5x = 60
x = 60÷5
x = 12m
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Explicación paso a paso:
1.- x/8 = 5/4
x4 = 8 × 5
x4 = 40
x = 10m
2.- (x+2)/4 = 4/2
x+2 = 2
x + 2 = 2
x = 2 - 2
x = 0m
3.- 5/3 = 20/x
5x = 20 × 3
5x = 60
x = 60÷5
x = 12m