Question

ache o valor de x:

a) 2x +3 <5

b) 3x +8 >23 -2x​

Answer 1

Resposta:

A)

2x + 3 < 5

2x < 5 - 3

2x < 2

x < 2/2

x < 1

B)

3x + 8 > 23 - 2x

3x + 2x > 23 - 8

5x > 15

x > 15/5

x > 3

Abraço!!!

Answer 2

Resposta:

$a)\\ 2x+3<5\\ 2x<5-3\\ 2x<2\\\\  x<{2\over2}\\ \\ x<1\\ \\ b)\\ 3x+8>23-2x\\ 3x+2x>23-8\\ 5x>15\\\\  x>{15\over5}\\ \\ x>3$