Question

Resolva as seguintes equações.
A) x-17=9 b) 2x=-7
c)3x+2=2x-11 d)2x+16
e)2x++5x-1 f)4x-5+6x+11
g)5x=4-2x+26-3x h)y-8+5y= -3+2y+7
i)4t+9=3t+5 j)-10+4-2x= -4x-7
i)10x-8-2=7x-4

Answer 1

A)x-17=9. X=9+17. X=26. B)2x=-7. X=-7/2. X=-3,5. C)3x+2=2x-11. 3x-2x=-11-2. X=-13. D)2x+16=0. 2x=-16. X=-16/2. X=-8. E)2x+5x-1=0. 7x=1. X=1/7. F)4x-5+6x+11=0. 10x=5-11. 10x=-6. X=-6/10. X=-0,6. G)5x=4-2x+26-3x. 5x+2x+3x=26+4. 10x=30. X=30/10. X=3. H)y-8+5y=-3+2y+7. 6y-2y=4+8. 4y=12. Y=12/4. Y=3. i)4t+9=3t+5. 4t-3t=5-9. T=-4.

Answer 2

A) x-17=9 ==> x = 9+17 ==> x = 26

b) 2x=-7 ==> x = - 7/2

c)3x+2=2x-11 ==> 3x-2x= - 11- 2 ==> x = - 13

d)2x+16 = 0 ==> 2x = - 16 ==> x = - 8

e)2x++5x-1 = 0 ==> 7x = - 1 ==> x = - 1/7

f)4x-5+6x+11 = 0 ==> 10x = 6 ==> x = 6/10

g)5x=4-2x+26-3x ==> 5x+2x+3x= 30 ==> 10x = 30 ==> x = 3

h)y-8+5y= -3+2y+7 ==> y+5y-2y=-3+7+8 ==> 4y=12 ==> y = 3

i)4t+9=3t+5 ==> 4t-3t= 5- 9 ==> t = - 4

j)-10+4-2x= -4x-7 ==> -2x+4x=-7+10-4 ==> 2x = - 1 ==> x = -1/2

i)10x-8-2=7x-4 ==> 10x-7x = - 4 + 8+2 ==> 3x=6 ==> x = 2