Question

x-3=8
x+5=8
3x=15
2x=14
13x=13
8X-15=3x
4x+1=5x-8
2y+1=13​

Answer 1

Equação do 1° Grau

x-3=8

x = 8+3

x = 11

x+5=8

x = 8-5

x = 3

3x=15

x = 15/3

x = 5

2x=14

x = 14/2

x = 7

13x=13

x = 13/13

x = 1

8X-15=3x

8x-3x = 15

5x = 15

x = 15/5

x = 3

4x+1=5x-8

4x-5x = -8-1

-x = -9

x = 9

2y+1=13

2y = 13-1

2y = 12

y = 12/2

y = 6

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08/11/21

Answer 2

x - 3 = 8

x = 8 + 3

x = 11

x + 5 = 8

x = 8 - 5

x = 3

3x = 15

x = $\frac{15}{3}$

x = 5

2x = 14

x = $\frac{14}{2}$

x = 7

13x = 13

x = $\frac{13}{13}$

x = 1

8x - 15 = 3x

8x -3x = 15

5x = 15

x = $\frac{15}{5}$

x = 3

4x + 1 = 5x - 8

4x - 5x = -8 -1

-x = -9

x = 9

2y + 1 = 13

2y = 13 - 1

2y = 12

y = $\frac{12}{2}$

y = 6