Respuesta:
Explicación paso a paso:
a) 7x - 9 = 54
7x = 54 + 9
7x = 63
x = 63 : 7
x = 9
b) x : 15 + 32 = 35
x : 15 = 35 - 32
x : 15 = 3
x = 3 · 15
x = 45
c) (x + 2 ) : 6 = 4
x +`2 = 6 · 4
x + 2 = 24
x = 24 - 2
x = 22
d) (x - 12) · 4 = 16
x - 12 = 16 : 4
x - 12 = 4
x = 4 + 12
x = 16
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Respuesta:
Explicación paso a paso:
a) 7x - 9 = 54
7x = 54 + 9
7x = 63
x = 63 : 7
x = 9
b) x : 15 + 32 = 35
x : 15 = 35 - 32
x : 15 = 3
x = 3 · 15
x = 45
c) (x + 2 ) : 6 = 4
x +`2 = 6 · 4
x + 2 = 24
x = 24 - 2
x = 22
d) (x - 12) · 4 = 16
x - 12 = 16 : 4
x - 12 = 4
x = 4 + 12
x = 16