(-5x+7y=11) - (-5x+3y=19) =
4y = -8. (divide both sides by 4)
y = -2
Substitute
-5x + 7(-2) =11
-5x - 14 =11
-5x = 25
x = -5
y = -2 and x = -5
Answer:How to calculate discount and sale price? · Find the original price (for example $90 ) · Get the the discount percentage (for example 20% ) ...
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Answer:
confusion maxed out
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Answer:
think it's A (0,6) if not then idk maybe D
