Explicación paso a paso:
5y + 3 = 38
5y = 38-3.
y = 35/5
y = 7
6a = 36
a = 36/6
a = 6
x + 25 = 48
x = 23
x- 58 = 12
x = 70
2x + 4 = 16
2x = 8
x = 4
x/2 = 20
x = 20.2
x = 40
x + 100 = 101
x = 1
x/3 + 5 = 20
x/3 = 15
x = 15/3
x = 5
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Explicación paso a paso:
5y + 3 = 38
5y = 38-3.
y = 35/5
y = 7
6a = 36
a = 36/6
a = 6
x + 25 = 48
x = 23
x- 58 = 12
x = 70
2x + 4 = 16
2x = 8
x = 4
x/2 = 20
x = 20.2
x = 40
x + 100 = 101
x = 1
x/3 + 5 = 20
x/3 = 15
x = 15/3
x = 5