The equation 6 x-1 18x can be simplified to the answer 112x.
The 'answer' is the number that 'x' has to be in order to make the statement true.18x + 3 = 12xSubtract 3 from each side of the equation:18x = 12x - 3Subtract 12x from each side:6x = -3Divide each side by 6 :x = - 1/2
x^3-10x²+18x+24=0 Factor the equation so we can have equations which are easier to find 0's for. (x-4)*(x²-6x-6)=0 Set each component equal to 0 and solve for x. x-4=0 x=4 x²-6x-6=0 x=(-b±√(b²-4ac))/2a x=(-6±√(36-24))/2 x=-3±√3
To solve a system of equations using substitution you solve one of the equations for one of the variables then substitute that into the other equation to solve for the other variable. For example. y = 6x 2x + 3y = -20 The first equation has already been solved for y. So, you simply substitute that into the second equation. 2x + 3(6x) = -20 2x + 18x = -20 20x = -20 x = -20/20 = -1 Now you have solved for x. You can substitute your answer for x back into the first equation to solve for y. y = 6x = 6(-1) = -6 Putting it all together... x = -1 y = -6
6
The equation 6 x-1 18x can be simplified to the answer 112x.
-x=-2
x = 1/3
x2 - 18x + 72 = 0 (x - 6)(x - 12) = 0 x ∈ {6, 12}
when you're given a point and a slope and you're trying to figure out an equation you use the point-slope equation: y-y1=m(x-x1) x1 and y1 are the x and y coordinates of the point given and m is the slope example: slope is 5 point (4/5, 6) plug them in to the equation y-6=5(x-4/5) y-6=5x-4 distribute 5 y=5x-4+6 add 6 to both sides y=5x+2 combine like terms
The 'answer' is the number that 'x' has to be in order to make the statement true.18x + 3 = 12xSubtract 3 from each side of the equation:18x = 12x - 3Subtract 12x from each side:6x = -3Divide each side by 6 :x = - 1/2
x^3-10x²+18x+24=0 Factor the equation so we can have equations which are easier to find 0's for. (x-4)*(x²-6x-6)=0 Set each component equal to 0 and solve for x. x-4=0 x=4 x²-6x-6=0 x=(-b±√(b²-4ac))/2a x=(-6±√(36-24))/2 x=-3±√3
An equation to figure out what the answer of "x" is. eg, Removing the brackets - 6(3x-2) = 2(8x+4) 18x-12 = 16x + 8 18x-16x = 8+12 2x = 20 x = 10
To solve a system of equations using substitution you solve one of the equations for one of the variables then substitute that into the other equation to solve for the other variable. For example. y = 6x 2x + 3y = -20 The first equation has already been solved for y. So, you simply substitute that into the second equation. 2x + 3(6x) = -20 2x + 18x = -20 20x = -20 x = -20/20 = -1 Now you have solved for x. You can substitute your answer for x back into the first equation to solve for y. y = 6x = 6(-1) = -6 Putting it all together... x = -1 y = -6
l9xl - 3 > 6 Is the equation.
You cannot solve it because it is an expression - not an equation nor inequality.
3(4 - x) - 6(4 - 3x) = 3 Expand the brackets: 12 - 3x - 24 + 18x = 3 [note that -6*(-3x) gives +18x] Combine like terms: -12 + 15x = 3 Add 12 to both sides: 15x = 15 Divide both sides by 15: x = 1.