you have to solve for it. it will be different for every equation. lets say your equation is... y=3x-12 when you y-coordinate is zero you have this... 0=3x-12 now solve for x 0=3x-12 12=3x x=4 therefore your coordinates would be (4,0)
1 + 3x - x = x - 4 + 2x 1 + 4 = x + 2x - 3x + x 5 = x
The answer is dividing. 3x=24 3x/3=24/3 x = 8
X = 12
Simple algebra. 1 + 3x = -x - 4 3x = -x - 5 -3x = x + 5 -4x = 5 x = -1.25
4
what does the equation equal? if it equals zero: 0= 3x(4-11) 0=3x(-7) 0=3x 0=x if the equation doesn't equal anything, it means it's just an expression meaning you can't solve for x, you can only reduce (and this equation is already reduced). if the equation equals y, you need another equation and use either substitution or elimination to solve for x.
x = 6
2x+3x=50 5x=50 x=10
3x+4=10 To solve: 3x+4=10 3x=6 x=2
x + 5 = 4x/3 Solve for x multiply both sides of the equation by 3... 3 * (x + 5) = 3 * (4x/3) 3x + 15 = 4x subtract 3x from both sides of the equation (3x + 15) - 3x = (4x) - 3x 15 = x x = 15
you have to solve for it. it will be different for every equation. lets say your equation is... y=3x-12 when you y-coordinate is zero you have this... 0=3x-12 now solve for x 0=3x-12 12=3x x=4 therefore your coordinates would be (4,0)
You haven't given the solution to the equation ! 3x + 20 = ? If you have the number for the question-mark - you can find the value of x ! For example in the equation 3x + 20 = 50... the value of x is 10.
1 + 3x - x = x - 4 + 2x 1 + 4 = x + 2x - 3x + x 5 = x
The answer is dividing. 3x=24 3x/3=24/3 x = 8
Add 5 to both sides of the equation to get rid of the - 5. -3x - 5 + 5 = -20 + 5 Solve and simplify. -3x = -15 Divide both sides of the equation by -3. x = 5
2x + 3(x -4) = 18