Let the unknown number be x.
<span>sum of a number and one: x + 1
</span>
<span>sum of a number and one is doubled: 2(x + 1)
</span>
<span>three less than the number: x - 3
2(x + 1) = x - 3
2x + 2 = x - 3
x + 2 = -3
x = -5
The number is -5.
</span>
Answer:
-7xy+4x^2-8 and y+1-8x^y
Step-by-step explanation:
Answer:
-4.6
Step-by-step explanation:
-2.3-2.3=-4.6
