Respuesta:
a) x = 7/4
b) y = 5}
c) x = 7/17
Explicación paso a paso:
a.) 30 x - 20 = 8 + 6x
30x - 6x = 8 + 20
24x = 28
x = 28/24
x = 7/4
b.) 8 y = 40
y = 40/8
y = 5
c) 100 x - 20 = 50 - 70 x
100x + 70x = 50 + 20
170x = 70
x = 70/170
x = 7/17
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24x= 28
X= 28/24
X= 7/6
b) y= 40/8
y= 5
c) 100 x + 70 x = 50 + 20
170x= 70
X= 70/170
X= 7/17
Verified answer
Respuesta:
a) x = 7/4
b) y = 5}
c) x = 7/17
Explicación paso a paso:
a.) 30 x - 20 = 8 + 6x
30x - 6x = 8 + 20
24x = 28
x = 28/24
x = 7/4
b.) 8 y = 40
y = 40/8
y = 5
c) 100 x - 20 = 50 - 70 x
100x + 70x = 50 + 20
170x = 70
x = 70/170
x = 7/17