Problema Solution
Two Martians, Splott and Fizzle, have solved the equation 2x+4=3x+14. Examine the work of Splott and Fizzle. Identify any errors in the Martians calculations and explain, using complete sentences, what corrections they should make.
Splott
2x+4= -3x+14
2x+4+3x=-3x+14+3x
5x+4=14
5x+4+4=14+4
5x= 18
Fizzle
2x+4=3x+14
2x+4-2x = -3x+14-2x
4- 14- 5x
4 - 14 = 14 - 5 x - 14
-12=-5x
-12 + 5 = -5x + 5
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Splott
2x+4= -3x+14
2x+4+3x=-3x+14+3x
5x+4=14
5x+4+4=14+4 he is writing that he adds 4 on both sides
5x= 18 we notice here that he subtracted 4 on the left side but added 4 on the right side
Fizzle
2x+4=3x+14
2x+4-2x = -3x+14-2x he changed the sign in front of 3x
4- 14- 5x this row does not make any sense (maybe a typing mistake during the submit of the the question? if so, please re-submit the same question again)
4 - 14 = 14 - 5 x - 14
-12=-5x
-12 + 5 = -5x + 5