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Earn +20 ptsQ: Which number when substituted for x makes the equation 4x 8?
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Which best explains why the equation 4x 5 4x - 1 has no solutions?
I think this might read "4x+5 = 4x-1". Subtracting 4x from both sides cannot upset the equality, and then you have +5 = -1, which is nonsense. One moral of this is "make sure your equation makes sense, and actually includes an = sign."
WHAT IS 3Y plus 4X equals 7?
It's the equation of a straight line. Every point on the line is a solution to the equation. There are an infinite number of them.
If 16 less than four times a number is 64 what is the number?
4x - 16 = 64Add 16 to each side of the equation:4x = 80Divide each side by 4:x = 20
Seven less than four times a number equals 13?
Let the unknown number be x: 4x-7 = 13 Moving -7 to the other side of the equation changes it to +7: 4x = 13+7 4x = 20 Divide both sides of the equation by 4 to find the value of x: x = 5
One number is 4 times another The sum of the two numbers is -15 What is the value of the smaller number?
19
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