Doodoo2011
Multiply factors.
-15 x - 10 - x + 3 = - 16 x - 20 + 13
Group like terms.
Add 16x + 7 to both sides and write the equation as follows
0 = 0
The above statement is true for all values of x and therefore all real numbers are solutions to the given equation.
Doodoo2011
x - 7 - 9 = -3x - 16 = -3x = 13
You need to organise your question properly. 3x+2y=4 4x + 3y= 7? Is 4 4x = 44x or 4-4x or 4+4x How can there be 2 equal signs in 1 equation?
42
24-3x-273x=27+(-24)3x=3x=1
3x=12 3x/3=12/3 x=4
18 - 44x
13-3x = 43 -3x = 43-13 -3x = 30 x = -10
-10
Solved for y: y=(3x-13)/5 Solved for x: x=(5y+13)/3
x - 7 - 9 = -3x - 16 = -3x = 13
You need to organise your question properly. 3x+2y=4 4x + 3y= 7? Is 4 4x = 44x or 4-4x or 4+4x How can there be 2 equal signs in 1 equation?
42
You cannot solve it with two unknown values 'x' & 'y' . However, it can be rearranged to form a strasight line eq'n. Hence -3x -3y = -15 Cancel down by '3' Hence -x -y = -5 Multiply by '-1', Hence x + y = 5 Hence y = -x + 5 Is the straight line eq'n. It has a slope/gradient of '-1' ; the coefficient of 'x' It intercepts the y-axis at '5'. ; ( 0,5)
Subtract 3 from each side: -3x = 12Divide each side by -3: x = -4
24-3x-273x=27+(-24)3x=3x=1
3x + 2y = 12 ie 2y = 12 - 3x so y = 6 - 3x/2
you cant solve but you can simplify -55x