How do you solve $9 \leq 4 x - 7$ $9\leq 4x - 7$ ?

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How do you solve $9 \leq 4 x - 7$ $9\leq 4x - 7$ ?

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Answer 1 · 2017-09-27T20:29:44

$x \geq 4$ $x >= 4$

Explanation:

$9 \leq 4 x - 7$ $9 <= 4x -7$
Flip the equation
$4 x - 7 \geq 9$ $4x - 7>=9$
$4 x \geq 9 + 7$ $4x >=9+7$
$4 x > + 16$ $4x>+16$
Divide both sides by $4$ $color(red)(4)$
$\frac{4 x}{4} \geq \frac{16}{4}$ $(4x)/color(red)(4) >= 16/color(red)(4)$
$x \geq 4$ $x >= 4$

Answer 2 · 2017-09-27T20:31:08

$x \geq 4$ $x>=4$

Explanation:

Add 7 to both sides

$16 \leq 4 x$ $16<=4x$

And divide through by 4

$4 \leq x$ $4<=x$

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How do you solve $9 \leq 4 x - 7$ $9\leq 4x - 7$ ?

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