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What is the value of y equals 2x when x equals 4?
y=8 y = 2x y = 2(4) <-- substitute 4 for x y = 8 <-- this is your answer
X plus y equals 4 x-y equals 4?
8
What is the solution to x plus y equals 8 y equals x?
x=4 y=4
What property is if x equals 4 and y equals 2x then y equals 8?
Substitution property.
What is the answer to 2y equals 8?
y=4
What is the value of y equals 2x when x equals 4?
y=8 y = 2x y = 2(4) <-- substitute 4 for x y = 8 <-- this is your answer
What is a solution to these equations X plus Y equals -8 and 2x - y equals 4?
x+y=-8 2x-y=4 y=-x-8 2x+x+8=4 3x=-4 x=-4/3 -4/3 + y= -8 y = -8 + 4/3 y= -6 2/3
X plus y equals 4 x-y equals 4?
8
What is the solution to x plus y equals 8 y equals x?
x=4 y=4
When x equals 8 and y equals - 4 find the value of 2x - y?
x = 8y = -42x - y = 2(8) - (-4) = 16 + 4 = 20
What property is if x equals 4 and y equals 2x then y equals 8?
Substitution property.
What is the slope of line with the equation 2x 3y plus 6 equals 0?
Put the equation in this form: y=mx+b. Then m will be the slope. 2x3y+6=0 2x3y=-6 3y=-6/2x y=-2/2x y=-1/x This equation does not describe a straight line, but rather, it describes a curve.
What is y-8 equals 4?
12
What is the answer to 2y equals 8?
y=4
What is the answer to x- y equals y if x equals 8?
For this problem, write it out... x-y=y... x=2y...8=2y...8/2=y...4=y First, I made both y's on the same side( I added a y to both sides). Then, I replaced the x with an 8. Then, I divide out the 2 from both sides. This leaves me with 4=y So... x=8, y=4, 8-4=4
Find the value of y equals 5a-3b plus c if a equals 12 b equals 4 c equals 8?
y=5a-3b+c a=12b=4c=8 a=8 b=2/3 c=2 y=5(8)-3(2/3)+(4) y=40-2+4 y=38 y = 823
Y equals 3x-4 and y equals 4 plus x solve by elimination?
y = 3x - 4 y = 4 + x Subtract the second equation from the first: y - y = 3x - 4 - 4 - x 0 = 2x - 8 2x = 8 so that x = 4 Substitute for x into second equation: y = 4 + 4 = 8 So the solutions is (4, 8).
