Question

Sendo∪=Q, calcule-as seguintes equações, do 1° grau com uma variavel

a- x+4 = 14

b- x+2 = 9

c- 2x+2 = 18

d- 4x+4 = 20

e- x+12 = 5

f- 10x-2 = 7x

g- -5=5x+12

h- 6x+5 = 6

i- 4x=3x+9

j- $\frac{x}{2}$ +8 = 16

Answer 1

a- x+4 = 14
x = 14 - 4
x = 10

b- x+2 = 9
x = 9 - 2
x = 7

c- 2x+2 = 18
2x = 18 - 2
2x = 16
x = 16/2
x = 8

d- 4x+4 = 20
4x = 20 - 4
4x = 16
x = 16/4
x = 4

e- x+12 = 5
x = 5 - 12
x = - 7

f- 10x - 2 = 7x
10x - 7x = 2
3x = 2
x = 2/3


g- -5=5x+12
-5x = 12 + 5
-5x = 17 ( - 1)
x = - 17/5


h- 6x+5 = 6
6x = 6 - 5
6x = 1
x = 1/6

i- 4x=3x+9
4x - 3x = 9
x = 9

J - x/2 + 8 = 16
x/2 • 2 + 8 • 2 = 16 • 2
x + 16 = 32
x = 32 - 16
x = 16

Answer 2

╔─━━━━━━░★░━━━━━━─╗

Olá Tudo Bom!!

a)

= x+4= 14

= x= 14-4

= x= 10

S={10}

b)

= x+2=9

= x=9-2

= x= 7

S={7}

c)

= 2x+2= 18

= 2x= 18-2

= 2x= 16

= x= 16/2

= x= 8

S={8}


d)

= 4x+4= 20

= 4x= 20-4

= 4x= 16

= x= 16/4

= x= 4

S={4}


e)

= x+12= 5

= x= 5-12

= x= -7

S={-7}


f)

= 10x-2= 7x

= 10x-7x= 2

= 3x= 2

= x= 2/3

S={2/3}


g)

= -5= 5x+12

= -5x= 12+5

= -5x=17^(-1)

= x= -17/5

S={-17/5}


h)

= 6x+5=6

= 6x= 6-5

= 6x= 1

= x= 1/6

S={1/6}

i)

= 4x= 3x+9

= 4x-3x= 9

= x= 9

S={9}

j)

= x/2+8=16

= x+16= 32

= x= 32-16

= x= 16


S={16}


Espero Ter Ajudado!!Bons Estudos!!❤


╚─━━━━━━░★░━━━━━━─╝