Question

2x + 3 = x + 4



5x + 7 = 4x + 10


4x – 10 = 2x + 2


4x – 7 = 8x – 2


2x + 1 = 4x – 7


9x + 9 + 3x = 15


16x – 1 = 12x + 3

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é pra hoje essa atividade​

Answer 1

a) 2x+3 = x+4

2x-x = 4-3

x = 1

b) 5x+7= 4x+10

5x-4x= 10-7

x = 3

c) 4x-10 = 2x+2

4x-2x = 2+10

2x = 12

x = 12/2

x = 6

d) 4x-7 = 8x-2

4x-8x = -2+7

4x = 5

x = 5/4

e) 2x+1 = 4x - 7

2x-4x = -7-1

2x = -8

x = -8/2

x = -4

f) 9x+9+3x = 15

9x+3x = 15-9

7x = 6

x = 7/6

g) 16x–1 = 12x+3

16x-12x = 3+1

4x = 4

x = 4/4

x = 1