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Answer 1 · 2017-08-11T09:34:12

#x=-9#

#x+2=3-10#
#x+2=-7#
#x+2=-7-2#
#x=-9#

Answer 2 · 2017-08-11T10:04:15

#x = -9#

From your given question..

If #x + 2 = 3 - 10#

#color(white)(x) x + 2 = -7#

collect like terms..

#color(white)(x) x = -7 - 2#

#color(white)(x) x = -9#

About the 1 2 3 4 2 6 - Try explaining what it means to the given question!