solve for x if 9-x/4=2x?

Answer 1

9 - x/4 = 2x
36 - x = 8x
36 = 9x
x = 4

If question is
(9 - x) / 4 = 2x :-

9 - x = 8x
9 = 9x
x = 1

Answer 2

question decision a million : For this equation -x^2 + 4 = 2*x^2 - 5 , answer right here questions : A. come across the roots using Quadratic formula ! B. Use completing the sq. to discover the muse of the equation ! answer decision a million : First, we could continuously prepare equation : -x^2 + 4 = 2*x^2 - 5 , good right into a*x^2+b*x+c=0 style. -x^2 + 4 = 2*x^2 - 5 , flow each and each little factor indoors the suited hand component, to the left hand fringe of the equation <=> -x^2 + 4 - ( 2*x^2 - 5 ) = 0 , this is an comparable with <=> -x^2 + 4 + ( -2*x^2 + 5 ) =0 , now open the bracket and we get <=> -3*x^2 + 9 = 0 The equation -3*x^2 + 9 = 0 is already in a*x^2+b*x+c=0 style. so we are waiting to point that the value of a = -3, b = 0, c = 9. 1A. come across the roots using Quadratic formula ! Use abc formula and you get the two x1 = (-b+sqrt(b^2-4*a*c))/(2*a) or x2 = (-b-sqrt(b^2-4*a*c))/(2*a) As a = -3, b = 0 and c = 9, we would choose to subtitute a,b,c indoors the abc formula, with thos values. So we get x1 = (-(0) + sqrt( (0)^2 - 4 * (-3)*(9)))/(2*-3) and x2 = (-(0) - sqrt( (0)^2 - 4 * (-3)*(9)))/(2*-3) which would be grew to alter into into x1 = ( 0 + sqrt( 0+108))/(-6) and x2 = ( 0 - sqrt( 0+108))/(-6) Which make x1 = ( 0 + sqrt( 108))/(-6) and x2 = ( 0 - sqrt( 108))/(-6) we are waiting to get x1 = ( 10.3923048454133 )/(-6) and x2 = ( - 10.3923048454133 )/(-6) So we've the suggestions x1 = -a million.73205080756888 and x2 = a million.73205080756888 1B. Use completing the sq. to discover the muse of the equation ! -3*x^2 + 9 = 0 ,divide the two component with -3 Which carry forth x^2 - 3 = 0 , which potential the coefficient of x is 0 we could continuously use the shown certainty that ( x + q )^2 = x^2 + 2*q*x + q^2 , and assume that q = 0/2 = 0 which potential we are waiting to tutor the equation into x^2 - 3 = 0 which would be grew to alter into into ( x )^2 - 3 = 0 this is an comparable with (( x ) - a million.73205080756888 ) * (( x ) + a million.73205080756888 ) = 0 And it truly is an comparable with ( x - a million.73205080756888 ) * ( x + a million.73205080756888 ) = 0 Do the addition/subtraction, and we get ( x - a million.73205080756888 ) * ( x + a million.73205080756888 ) = 0 The suggestions are x1 = a million.73205080756888 and x2 = -a million.73205080756888

Answer 3

There are 2 answers for this, depends on how you define your question.

1) (9 - x) / 4 = 2x
Multiply both sides with 4
9 - x = 8x
9 = 9x
x = 1

2) 9 - (x/4) = 2x
Multiply each terms with 4,
4(9) - 4(x/4) = 4(2x)
36 - x = 8x
36 = 9x
x = 4

Answer 4

1

9-4/4=2 x 4

9-1=8

8=8

1=1

Answer 5

If u mean
(9-x) /4 = 2x
9-x =8x
9=9x
x=1

If u mean 9 -x/4=2x
9= 2x+x/4
9= 9x/4
9x=36
x=4

Answer 6

9-x/4=2x
4x9-x/4=(4)2x
9-x=8x
+x +x
9=9x
/9 /9
1=x

Answer 7

9-x/4=2x
First take.. Lcm on both the sides it. is 4
=> 1/4(9*4 - x)=1/4(4*2x)
both the side 1/4 is same so. u can cancel it
=>36-x=8x
Collecting similar terms on same side
=>-x-8x=-36
=>-9x=-36
=>x=-36/-9
=>x=4
Answer is x=4

Answer 8

9-x/4=2x?

take L.C.M of 4 on the denominator
(36-x)/4=2x

Cross multiply 4
36-x=8x

Take x to the right hand side
36=8x+x
36=9x

Perform cancellation
4=x
x=4

Answer 9

X = 4

9 - (4/4) = (9 - 1 )= (2X4) = 8

Answer 10

solving for x..

4(9-x/4 = 2x) -- multiply by 4 to be able to cancel 4
9-x=8x -- transpose -x to the other side.. it'll change its sign to x
1/9(9=9x) -- divide it by 9
you'll get..
x = 1