X=.75
x works out as 5/3
-1
3x+12x = 15 15x = 15 x = 1
x2+12x-13=0 The factor of x2+12x-13 is: (x+13)(x-1) So: x+13 = 0 or x-1 = 0 The answer is: x=-13 or x=1
X=.75
x works out as 5/3
x2+12x+11=0 (x+11)(x+1)=0 x=-11 or x=-1
-1
3x+12x = 15 15x = 15 x = 1
x2+12x-13=0 The factor of x2+12x-13 is: (x+13)(x-1) So: x+13 = 0 or x-1 = 0 The answer is: x=-13 or x=1
12x = x + 3 11x = 3 x = 3/11
The answer to the problem of 12X plus 13 equals 9 is x equals -1/3.
(12x -4) = 0 12x = 4 x = 1/3
Solving these simultaneous equations by the elimination method:- x = 1/8 and y = 23/12
Y=4, X=1
12x = 4(x+5) 3x = x+5 divide by 4 2x = 5 subtract x x = 2.5 divide by 2