y=4
It is an equation and the value of x is 4
You are given Y. Insert into first equation. 6X - (4X + 2) = 4 2X + 2 = 4 X = 2 ======= The value of X
Let x the first number, y the second number. equation 1: x/y = 4 equation 2: x+y =20 equation 3: manipulate equation 1 ----> x=4y substitute equation 3 to equation 2: 4y+y=20 5y=20 y=20/5 y=4 solve for the value of x by substituting the value of y to equations 1 or 2: using equation 1: x/4=4 x=4*4 x=16 using equation 2: x+4=20 x=20-4 x=16 Therefore, the two (2) numbers are: 4 and 16.
4
2y = 6x - 8y = 3x - 4========m(slope) = 3=========
6x + 4 = 60 - 2xSubtract 4 from each side of the equation:6x = 56 - 2xAdd 2x to each side:8x = 56Divide each side by 8:x = 7
It is an equation and the value of x is 4
10
You are given Y. Insert into first equation. 6X - (4X + 2) = 4 2X + 2 = 4 X = 2 ======= The value of X
If you mean: y = 6x-4 then the parallel equation is y = 6x+10
x=10
2x+17=6x-23 23+17=6x-2x 40=4x x=40 / 4 therefore x=10
4x - 20 = -44x = 16x = 4
12+2x = 6x-18 12+18 = 6x-2x 30 = 4x Divide both sides of the equation by 4 to find the value of x: x = 7.5
4
The question is not quite clear, do you mean -6x+3y = -18 and -10+5y = -30? If so then the solution is: -10+5y= -30 5y = -30+10 5y = -20 y = -4 Substitute the value of y into the equation -6x+3y = -18: Answer: x = 1 and y = -4
To solve the equation 6x plus 4-3x,first subtract 3x from 4 which leaves you with 1x. The equation now reads 6x plus 1x, which equals 7x. --- Actually, to simplify this, we have to keep the numbers multiplied with the variables from the plain numbers. The equation based on the question it this: 6X + 4 - 3X So there is a +6X a -3x and a +4. So we simplify by consolidating the numbers multiplied with the Xs. So 6X - 3X is 3X. So we have 3x + 4. There is no way to solve this since we have only part of it and no equal sign.