2x+3x=31

17x-11x=8Substitute the values

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Solution

2x + 3x=31
=>5x=31
=>x=31/5
Substituting x
=231/5 +331/5
=531/5
=31 proved

17x-11x=8
6x=8
x=8/6
x=4/3
Substituting x
174/3-114/3
=64/3
=2*3=6 proved

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