X=7
x= Negative 4
It is an equation and the value of x works out as 88
x=1
It is a quadratic equation with one unknown variable, x which has no real roots.
2x = -7 - 8y
X=27
2x2 + 2x - 8 = 2(x2 + x - 4). This can take any value greater than or equal to -8.5
6x plus 3y minus 2x plus 5y equals 4x plus 8y.
Using the quadratic equation formula the value of x is -8 or 5
2x+7x-10=4x+3-2x 9x-10=2x+3 7x=13 x=13/7ans
An equation where x equals 3.
[ y = 2x plus or minus any number ] is parallel to it. [ y = -0.5x plus or minus any number ] is perpendicular to it.
This is a simultaneous equation question: x-2y = -4 2x-y = 1 Multiply all terms in the top equation by 2: 2x-4y = -8 2x-y = 1 Subtract the bottom equation from the top equation remembering that a minus minus equals a plus: -3y = -9 Divide both sides of the equation by -3 to find the value of y remembering that a minus divided by a minus equals a plus: y = 3 Substitute the value of y into the original equations to find the value of x: Solution: x = 2 and y = 3
2x+3-7=0 2x=4 x=2
3x+7=2x-5 x=-12
2x+3=23 minus 3 from both sides 2x=23-3 so we get 2x=20 divide both sides by 2 to get the value of x x=10
if it is -X then X=5 if it was minus X the X=10