gnaohruiz05
gnaohruiz05
07-09-2017
Mathematics
contestada
if x-5(x-7)=-7 then x equals what?
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DeathTheKid101
DeathTheKid101
07-09-2017
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simplify x - 5x + 35 to -4x + 35
subtract 35 from both sides
simplify -7 - 35 to -42
divide both sides by -4
two negatives make a positive
simplify 42/4 to 21/2
Answer: x = 21/2.
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