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klio [65]
3 years ago
8

Which of these strategies would eliminate a variable in the system of equations? 5x+3y=9 4x−3y=9 ​

Mathematics
2 answers:
puteri [66]3 years ago
5 0

Adding both equations will eliminate a variable in the system of equations

Step-by-step explanation:

Given equations are:

5x+3y= 9\ \ \ \ \ Eqn\ 1\\4x-3y=9\ \ \ \ \       Eqn\ 2

One of the methods to solve simultaneous linear equations is elimination. In elimination one of the variables is eliminated from the system to find the value of other variable.

In the given equations we can see that the coefficients of y in both equations are same with opposite signs so adding both equations will eliminate the variable y from the system.

Hence,

Adding both equations will eliminate a variable in the system of equations

Keywords: Linear equations, variables

Learn more about linear equations at:

  • brainly.com/question/3126500
  • brainly.com/question/3306327

#LearnwithBrainly

lesantik [10]3 years ago
5 0

The answer is A) add the equations

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Since distance = rate * time, the distance (or length of the arrow pointing straight west) for Train 1 is 2r.  The distance (or length of the arrow pointing straight east) for Train 2 is 2(r + 12) which is 2r + 24.  The distance between them (which is also the length of the whole entire arrow) is 232.  Thus:

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