hallar el valor de x
A) 8 x - 3 = 5
B) 15 x - 3 = 10 x - 18
A) 8 x - 3 = 5
B) 15 x - 3 = 10 x - 18
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Respuesta:
A) 1
B) -3
esa sería la respuesta
Verified answer
Respuesta:
a) 8 x - 3 = 5
8 x = 5 + 3
x = 8 ÷ 8
x = 1
verificación
8 × 1 - 3 = 5
8 - 3 = 5
5 = 5
b) 15 x - 3 = 10 x - 18
15 x - 10 x = - 18 + 3
5 x = -15
x = - 15 ÷ 5
x = - 3
verificación
15 × (-3) - 3 = 10 × (-3) - 18
- 45 - 3 = - 30 - 18
- 48 = - 48