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15 - 3x = - 6 x=____ help

Sagot :

15-3x=-6x
15=-6x+3x
15=-3x divide both sides by -3x
x = -5
rosh18

Answer:

[tex]15 - 3x = - 6 \\ - 3x = - 6 - 15 \\ = 21 \\ x = \frac{21}{ - 3} \\ x = - 7[/tex]