Question

tìm số tự nhieen x biết 5x + 3x =88

Answer 1

\(5x+3x=88\)

\(x.\left(5+3\right)=88\)

\(x.8=88\)

\(x=88:8\)

\(x=11\)

Answer 2

$5x+3x=88$

$\Rightarrow8x=88$

$\Rightarrow x=88:8$

$\Rightarrow x=11(tm)$

Vậy $x=11$.

Answer 3

`#3107.101107`

\(5x+3x=88\\ \Rightarrow x\left(5+3\right)=88\\ \Rightarrow8x=88\\ \Rightarrow x=88\div8\\ \Rightarrow x=11\)

Vậy, `x = 11.`

Answer 4

X=5 và 3