Explain why x+2=9 and x+2=-6 are not equivalent equations.

Ernstfalld

Ernstfalld

Answered question

2021-09-29

Explain why x+2=9 and x+2=6 are not equivalent equations.

Answer & Explanation

firmablogF

firmablogF

Skilled2021-09-30Added 92 answers

Equivalent expressions are expressions that are the same, even through they may look a little different. If we plug in the same variable value into equivalent expressions, they will each give us the same value when we simplify.
Calculation:
Considering the first equation x+2=9.
Subtracting 2 from both sides we get,
x+2=9
x+22=92
x=7
Considering the second equation x+2=6.
x+2=6
x+22=62
x=8
Therefore, the solutions of both equations are not same so they are not equivalent equations.
Conclusion:
The equations x+2=9 and x+2=6 are not equivalent equations.

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