Question

Solve the inequality: 9x – 7 ≤ 28 + 4x; x ∈ W​

Answer 1

Step-by-step explanation:

Solving the equation,

$9x - 7 \leq 28 +4x$

$9x - 4x- 7 \leq 28 + 4x- 4x$

$5x -7 + 7 \leq 28 + 7$

$5x \leq 35$

$\dfrac{5x}{5} \leq \dfrac{35}{5}$

$x \leq 7$

Now , as x ∈ W,

The solution of inequality is,

$\{x:0\leq x \leq7\}$

$\color{#FF7968}{\rule{36pt}{7pt}}\color{#4FB3F6}{\rule{36pt}{7pt}}\color{#FBBE2E}{\rule{36pt}{7pt}}\color{#60D399}{\rule{36pt}{7pt}}\color{#6D83F3}{\rule{36pt}{7pt}}$

Answer 2

$9x - 7 + 7 \leqslant 28 + 7 + 4x$

$= 9x \leqslant 35 + 4x$

$9x - 4x \leqslant 35 + 4x - 4x$

$= 5x \leqslant 35$

$= x \leqslant 7.$

Mark brainliest.