2x+12=4x
Make two equations, and solve for x.
1. 2x+12= 4x 2. 2x+12= -4x subtract 2x from both sides
12=2x 12= -6x
6=x -2=x
plug in the x values to know if they are the solution for the eqaution.
2(6) +12= 4(6) 2(-2) +12= -4(-2)
12+12= 24 -4+12=8
24=24 8=8
The equation is true, it's all real numbers or infinite solutions.
Your answer is 24
Multiply both sides by three
Divide by 2
Y=24
I believe the answer would be 24 square units
The distance between -10 and 9 is 19 and the distance between 2 and -7 is 9
Hope this helps
Rearrange to: x^2 + 18x - 25 = 0
Then factorise (I like to do it by completing the square):
(x + 9)^2 -81 -25 = 0
(x + 9)^2 = 106
x + 9 = sqrt(106)
The sol'ns are:
x = -9 + and - sqrt(106)