Question

determine a raiz das equações

a) 5x-3=2x+6
b) 7x+4=5x-1
c) 6x-4=x+11
d) -2x+3=3x+17
e) 4x-½=2x+¾​

Answer 1

Explicação passo-a-passo:

a) 5x - 3 = 2x + 6

5x - 2x = 6 + 3

3x = 9

x = 9 ÷ 3

x = 3

b) 7x + 4 = 5x - 1

7x - 5x = -1 - 4

2x = -5

x = -5/2

c) 6x - 4 = x + 11

6x - x = 11 + 4

5x = 15

x = 15 ÷ 5

x = 3

d) -2x + 3 = 3x + 17

-2x - 3x = 17 - 3

-5x = 14

x = -14/5

e) 4x - 1/2 = 2x + 3/4

4x - 2x = 3/4 + 1/2

2x = (3 + 2)/4

2x = 5/4

x = 5/4 × 1/2

x = 5/8