How do you solve $- 5 x \geq 7 (x + 7) - 13$ $-5x \geq 7( x + 7) - 13$ ?

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Answer 1 · 2017-07-16T20:10:42

Treat the larger than or equal sign as an equals sign.

$- 5 x = 7 (x + 7) - 13$ $-5x = 7(x+7)-13$

Expand the bracket

$- 5 x = 7 x + 49 - 13$ $-5x = 7x+49-13$

Simplify

$- 5 x = 7 x + 36$ $-5x = 7x+36$

Minus the $36$ $36$ and add the $5 x$ $5x$ , you want the $x$ $x$ to be positive

$- 36 = 12 x$ $-36 = 12x$

Divide by $12$ $12$ on both sides

$- 3 = x$ $-3 = x$

Replace equals with larger than or equals sign

$- 3 \geq x$ $-3 >= x$

How do you solve −5x≥7(x+7)−13-5x \geq 7( x + 7) - 13?