Explicación paso a paso:
Si no me equivoco es hallar x:
8. 8x-4+3x = 7x +x - 14
8x+3x - 7x-x= - 14+4
3x=-10
x= -10/3
9. 8x+9-12x=4x-13-5x
8x-12x-4x+5x=-13-9
-3x=-22
x=-22/-3
x = 22/3
10. 5y+6y-81= 7y +102+65y
5y+6y-7y - 65y= +102+81
-61y= 183
y= 183/-61
y= - 3
6. 21-6x= 27-8x
-6x+8x= 27-21
2x= 6
x=6/2
x= 3
7. 11x +5x - 1=65x-36
11x +5x-65x =-36+1
-49x=-35
x=-35/-49
x= 5/7
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7. 7x = 5
8. 6x = 6
9. 3x = 22
10. y = -3
Verified answer
Explicación paso a paso:
Si no me equivoco es hallar x:
8. 8x-4+3x = 7x +x - 14
8x+3x - 7x-x= - 14+4
3x=-10
x= -10/3
9. 8x+9-12x=4x-13-5x
8x-12x-4x+5x=-13-9
-3x=-22
x=-22/-3
x = 22/3
10. 5y+6y-81= 7y +102+65y
5y+6y-7y - 65y= +102+81
-61y= 183
y= 183/-61
y= - 3
6. 21-6x= 27-8x
-6x+8x= 27-21
2x= 6
x=6/2
x= 3
7. 11x +5x - 1=65x-36
11x +5x-65x =-36+1
-49x=-35
x=-35/-49
x= 5/7