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2x-5x = -11 -7
-3x = -18
x = -18 : -3
x = 6
jadi nilai x+3 = 6 + 3 = 9
2x-5x = -11-7
-3x = -18
x = -18/-3 = 6.
jadi, x+3 = 6+3= 9.