Answer:
-1/2
Explanation:
you have to make it like this and use a variable:
2x+4=3
take away 4 from both sides:
2x= -1
divide by 2:
x = -1/2
The number is - ½
Let the missing number be x
2x + 4 = 3
2x = 3 - 4
2x = - 1
x = - ½
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