SOLUTION: Prove that given: {{{matrix(1,3,(5x-1)/8,""="",3)}}} then {{{x=5}}}

Algebra.Com
Question 1150961: Prove that given:

then

Found 2 solutions by Edwin McCravy, MathLover1:
Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!


Multiply both sides by 8:







Add +1 to both sides:







Divide both sides by 5:







Proved

Edwin

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

Statements..................... Reasons
1. ..................... Given
2. ..................... both sides of (1) multiply by
3. ..................... Addition of 1 to equation (2)
4. ..................... Substitution of into (3)
5. ..................... Substitution of and 24+1=25 into (4)
6. ..................... Dividing equation (5) by
7. .....................Substitution of into (6)

RELATED QUESTIONS

Find the inverse for the given matrix: If [3 -8 ] [-3 -7] Then, A^-1= (answered by jim_thompson5910)
1) Prove that if 3/5 x =-9, then x=-15. 2) Prove that if 3x-2=x-8, then x=-3. 3)... (answered by Alan3354)
Use the given matrix and perform the matrix operation (1/3) Row 1 [3 2 | 8 [5 2 |... (answered by Alan3354)
Given the matrix: [4 0 -2 -1 -2 3 8 5 1] What is a_2,2?... (answered by srinivas.g)
prove that if x^5=x^4+1, then... (answered by Edwin McCravy)
Given the matrix A= 1 1 1 1 2 3 1 4 5 Find a 3X3 matrix, B, that is not... (answered by Edwin McCravy)
Solve the linear system using the given
 inverse of the coefficent matrix. 

 w +  (answered by Edwin McCravy)
prove that the following matrix [[-2/3 1/3 2/3] [2/3... (answered by tommyt3rd)
Given: 5x+1=21 Prove:... (answered by luke94)