Question

1- Resolva as equações do 1° grau continuação
P) 2x-5 = x + 1

Q)5x -3 + x = 2x +9

R) X + 2x + 3 - 5x = -3

S) X + X - 4 = 17 - 2x + 1

T) 5x + 4 = 3x - 2x + 4

U) 4x - 1 = 3 (x - 1)

V) 3 ( x - 2 ) = 2x - 4

W) 3 ( 2x - 1) = -2 ( x + 3 )

Answer 1

P) 2x-5=x+1
2x(-5)=x+1
-10=x+1
-x=1+10
-x=11
x= -11

Q) 5x-3+x=2x+9
6x-3=2x+9
6x-3=-2x+9
6x-2x=9+3
4x=9+3
4x=12
x=3

R) x+2x+3-5x=-3
-2x+3=-3
-2x=-3-3
-2x=6
x=3

S) x+x-4=17-2x+1
2x-4=17-2x+1
2x-4=18-2x
2x-4+2=18
2x+2x=18+4
4x=18+4
4x=22
x= 11
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2

T) 5x+4=3x-2x+4
5x=3x-2x
5x=x
5x-x=0
4x=0
x=0