How do you solve $- 4 x + 9 x = - 30$ $-4x+9x=-30$ ?

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Answer 1 · 2016-02-09T15:00:39

x = - 6

collect 'like terms' : 5x = - 30

now divide both sides by 5

$(cancel(5) x)/cancel(5) = - 30/5 rArr x = - 6$

How do you solve -4x+9x=-30−4x+9x=−30-4x+9x=-30?