Question

1)2x+10=202)4x+50=2x+1003)5x+100= -4004)6x -140=1005)2x=x+106)10x=5x+5007)2+x= -x8) x + 8 = 12 pfv eu presiso tbm da equação sendo formada pra mim no repetir :.

Answer 1

Explicação passo-a-passo:

1) 2x +10=20

2x = 20-10

2x = 10

x= 10/2

x=5

2) 4x +50 = 2x +100

4x - 2x = 100 -50

2x = 50

x= 50/2

x= 25

3) 5x +100 = - 400

5x= -400 - 100

5x = - 500

x= -500/5

x= - 100

4) 6x- 140 = 100

6x = 100 +140

6x = 240

x= 240/6

x= 40

5) 2x = x+ 10

2x - x =10

x= 10

6) 10x = 5x +500

10x - 5x = 500

5x = 500

x= 500/5

x= 100

7) 2+ x= - x

x + x = -2

2x = -2

x= -2/2

x= -1

8) x+8 =12

x= 12-8

x= 4