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Earn +20 ptsQ: 3x what equals 21?
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-3x-y equals 3 and -3x-5y equals -21 please help me solve the above equation through the substitution method.?
-3x = 3 + y 3 + y - 5y = -21 -4y = -24 y = 6 x = -3
What is th y intercept of 7y plus 3x-21 equals 0?
3
A number multiplied by three equals 21. Find the number. Let x the number.?
If: 3x = 21 then x = 7
The sum of two numbers is 84 one number is three times the other what are the two numbers'?
a+b=84 a=3b 3b=84-b 4b=84 b=21 a=3*21 a=63 The two numbers are 21 and 63lets call the one number X and the other Y so y equals 3X so 3X+X equals 84 so 4X equals 84 we divide by 4 so x equals 21 so y equals 21*3 equals 63 so the two numbers are 63 and 21
What is the answer to 42 divided by something x 3multiplied by 12 equals 24?
(42/3x)*12=24 42/3X=2 42=6X x=7 if it'isn't 3x but x^3 then 21=X^3 21^(1/3)=2.76
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