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solve for x 4^2x - 20 = 7​

Sagot :

Rakeshyadav123321456idn

Answer:

19 is right answer from give questions

Kayapese6idn

Answer:6

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    4*(2*x-7)-(20)=0

Step by step solution :

STEP

1

:

Equation at the end of step 1

 4 • (2x - 7) -  20  = 0

STEP

2

:

STEP

3

:

Pulling out like terms

3.1     Pull out like factors :

  8x - 48  =   8 • (x - 6)

Equation at the end of step

3

:

 8 • (x - 6)  = 0

STEP

4

:

Equations which are never true:

4.1      Solve :    8   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

4.2      Solve  :    x-6 = 0

Add  6  to both sides of the equation :

                     x = 6

One solution was found :

x = 6

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