slove
1.) 2x/x+4=3/x-1
3(x+4)=(2x) (x-1)
3x+12=2x^2-2x
2x^2-5x-12=0
3x-12=0
3x=12
x=4
2.)4x/x-3-3=3x-1/x-3
x-3/1*4x-/x-3-x-3/1*3/1=x-3/1*3x-1/x-3
4x-3x-9=3x-1
1x-9=3x-1
3x-1x-8=0
2x-8=0
2x=8
x=4
3.)2+3/x=x
x(2+3/x)=x*x
5=x2 x2=5
4.)6/3y+3/y=1
3y*6/3y+3y*3/y=3y*1
6+9=3y
15=3y
y=5
5.)y/y+4+y/y+4=3
y+4*y/y+4+y+4*y+4=y+4*3
2y=y+4*3
2y=y=12
y=6
6.) write the rational expression x^2+x-42/36-12x+x^2 in lowest terms.
x^3/36-12x^3
add
7.) x+1/x^2-4x-5+x/x^2-5x-6+0 not sure what to do
8.) 3+2/x2
x^2*3+x^2*2/x^2
3x^2+2
multiply
9.)2x^6yz^7/-6x^8z*-20x^4y^3/x^3 not sure what to do
divide
10.) 4x-8/x-9/x^2-8x-9/x^2-4
flip second 4x-8/x-9*x^2-4/x^2-8x-9
4(x-2)/x-9*(x-2(x+2)/(x-9)(x+1)
11.) if y+19x^3+2/x^3-x, what values can x not have? not sure what to do
add
12.)7x/x+8+56/x+8
7x+56/x+8=7x+7
13.)x+15/27+12/27
x+27/27 =x=1
14.)7x-1/x^2+4x-12-3x+11/X2+4x-12
7x-1-3x+11/x^2+4x-12
4x-12/x^2+4x-12 =x2
15.)x/x-1-1/x+1
2x/x+4=3/x-1
thank you
1.) 2x/x+4=3/x-1
3(x+4)=(2x) (x-1)
3x+12=2x^2-2x
2x^2-5x-12=0
3x-12=0
3x=12
x=4
2.)4x/x-3-3=3x-1/x-3
x-3/1*4x-/x-3-x-3/1*3/1=x-3/1*3x-1/x-3
4x-3x-9=3x-1
1x-9=3x-1
3x-1x-8=0
2x-8=0
2x=8
x=4
3.)2+3/x=x
x(2+3/x)=x*x
5=x2 x2=5
4.)6/3y+3/y=1
3y*6/3y+3y*3/y=3y*1
6+9=3y
15=3y
y=5
5.)y/y+4+y/y+4=3
y+4*y/y+4+y+4*y+4=y+4*3
2y=y+4*3
2y=y=12
y=6
6.) write the rational expression x^2+x-42/36-12x+x^2 in lowest terms.
x^3/36-12x^3
add
7.) x+1/x^2-4x-5+x/x^2-5x-6+0 not sure what to do
8.) 3+2/x2
x^2*3+x^2*2/x^2
3x^2+2
multiply
9.)2x^6yz^7/-6x^8z*-20x^4y^3/x^3 not sure what to do
divide
10.) 4x-8/x-9/x^2-8x-9/x^2-4
flip second 4x-8/x-9*x^2-4/x^2-8x-9
4(x-2)/x-9*(x-2(x+2)/(x-9)(x+1)
11.) if y+19x^3+2/x^3-x, what values can x not have? not sure what to do
add
12.)7x/x+8+56/x+8
7x+56/x+8=7x+7
13.)x+15/27+12/27
x+27/27 =x=1
14.)7x-1/x^2+4x-12-3x+11/X2+4x-12
7x-1-3x+11/x^2+4x-12
4x-12/x^2+4x-12 =x2
15.)x/x-1-1/x+1
2x/x+4=3/x-1
thank you
