What is x if $5 x - 14 = 21$ $5x-14=21$ ?

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Answer 1 · 2015-10-25T16:36:33

$x = 7$ $x=7$

$[1] 5 x - 14 = 21$ $[1]" "5x-14=21$

Add 14 to both sides.

$[2] 5 x - 14 + 14 = 21 + 14$ $[2]" "5x-14+14=21+14$

$[3] 5 x = 35$ $[3]" "5x=35$

Divide both sides by 5.

$[4] \frac{5 x}{5} = \frac{35}{5}$ $[4]" "(5x)/5=35/5$

$[5] x = 7$ $[5]" "color(blue)(x=7)$

What is x if 5x-14=215x−14=215x-14=21?