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Earn +20 ptsQ: How do you simplify y equals 2x-5 and 4x-y equals 7?
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Evaluate 4x y when x 3 and y -7?
4xy = 4(3)(-7) = - 84
-2x 5 -4x 7?
I assume that the question means 4x-7=2x+5. In that case, the answer x would equal 6.
-2x-7 equals -x plus 13?
you need to reorder the problem by manipulating the numbers -2x-7=-x+13 group your variables and constants thus -x-2x=7+13 simplify -3x=20 simplify again x=-20/3
Simplify the algebraic expression 7x squared minus 4y plus 3x squared plus 5y plus 2 and evaluate it for x equals 3 and y equals 9?
7(3y-2)-(-4y+9)
How do you simplify the expression 18m-7 12m?
18m-7+12m
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