Which first step for solving the given system using substitution results in an equation without fractions?
2 answers:
Answer:
Option 3 - Solve for x in the second equation
Step-by-step explanation:
Given : Equations and
To find : Which first step for solving the given system using substitution results in an equation without fractions?
Solution :
Re-write equations as,
.....(1)
Take 6 common and cancel out,
.....(2)
Now the first step is solve for x in the second equation,
i.e.
Substitute x in equation (1),
Solution of system of equation does not exist.
Therefore, the required step is 'Solve for x in the second equation'.
So, Option 3 is correct.
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Given
How to factor
Solution
Step 1
Multiply the first and last costant
Step 2
Write out all the pair factors of -6x^2
Step 3
Check for the pair, such that when you add you will get -x
Step 4
Replace -x with -3x+2x in the equation
Step 5
Put them into brackets Since + is at the center no stress.
Step 6
Factor out what is common in the bracket
Step 7
What is in the bracket are the same, pick one
Answer:58.56
tienes que aplicar el teorema de Pitágoras para resolverlo como tienes el valor de A y C primero encuentras B y luego ya es mas fácil encontrar x
Te dejo un archivo adjunto con el procedimiento
