1.- x = -22/21
x = -22/8x + 9 + 12x = 4x - 13 - 5 ×
20x + 9 = - x - 13
20x + x = - 13 - 9
21x = - 22
x = -22/21
Solución :
3.- 3m+101-4m-33=108-16m-100
-m+68=8-16m
16m-m=8-68
15m=-60
m=-60/15
m=-4
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Verified answer
1.- x = -22/21
x = -22/8x + 9 + 12x = 4x - 13 - 5 ×
20x + 9 = - x - 13
20x + x = - 13 - 9
21x = - 22
x = -22/21
Solución :
x = -22/21
3.- 3m+101-4m-33=108-16m-100
-m+68=8-16m
16m-m=8-68
15m=-60
m=-60/15
m=-4