Question

Me ajudem por favor

Resolva as inequações a seguir.

coloquem cálculo ​

Answer 1

Resposta:

a) $4x-6>30\\4x>36\\x>\frac{36}{4}\\x>9$       b) $3x+2<20\\3x<18\\x<\frac{18}{3}\\x<6$          c) $5x-4\leq 36\\5x\leq40\\x\leq \frac{40}{5}\\x\leq8$

Answer 2

Resposta:

$a)\ 4x-6>30\\\\4x-6+6>30+6\\\\4x>36\\\\x> \frac{36}{4}\\\\x>9$

$b)\ 3x+2<20\\\\3x+2-2<20-2\\\\3x<18\\\\x<\frac{18}{3}\\\\x<6$

$c)\ 5x-4\leq 36\\\\5x-4+4\leq36+4\\\\5x\leq40\\\\x\leq\frac{40}{5}\\\\x\leq8$

Explicação passo a passo: