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Q: Find the value of 2x² when x equals 3?

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X=7

I believe the converse is: if 2x equals 6 then x equals 3 inverse: if x doesn't equal 3 then 2x doesn't equal 6 contrapositive: if 2x doesn't equal 6 then x doesn't equal 3

2x + 3 = x 2x + 3 - 3 = x - 3 2x = x - 3 2x - x = x - 3 - x x = -3

x^3=2x+5 x^3-2x-5=0 Graph the equation or use a calculator. x= 2.09455148

2x-3 = x+5 2x-x = 8 x = 8

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13 + 2x = 32x = 3 - 132x = -10x = -5

6

2x + 3 = 6 2x = 3 x = 3/2 = 1.5

It is an equation and the value of x is 6.5

y = 2x+5 x+y = 4 Substitute the value of y into the second equation: x+2x+5 = 4 x+2x = 4-5 3x = -1 Divide both sides by 3 to find the value of x: x = -1/3 Substitute the value of x into the original equations to find the value of y: x = -1/3 and y = 4 and 1/3

3x - y = 3y = 2x + 2Put the value of y in the 1st equation:3x - y = 3 it will be -->3x - ( 2x + 2 ) = 33x - 2x - 2 = 3x - 2 = 3X = 5Put the value of X in the 2nd equation so as to find the value of Y :y = 2x + 2y = 2(5) + 2y = 10 + 2Y = 12

2x+3=9 Your question is what is X value. 2x+3=9 2x=9-3 2x=6 2/2x=6/2 x=3 Best answer by Deo Math Club...

7(2 + 2x) is 78 when x = 3. = 5,764,801.

If 3x + 3 = 2x + 6 then 3x - 2x = 6 - 3 x = 3

answer is y=(4/3)-(2x/3)

2x+3=9 2x=9-3 2x=6 2x/2=6/2 X=3

If: 2x-3y = -15 and x = 4y Then: x = -12 and y = -3

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