Answer:
2
Step-by-step explanation:
Before we do this problem, let's go over a little algebra terminology.
The number in front of your variable is called your <em>coefficient </em>and notice that the <em>x</em> at the end of the problem does not have a coefficient.
When that happens, when there is no number in front of your variable, you can put a 1 there to fill that position. So -x can be thought of as -1x.
Next let's change all our minus signs to plus negatives.
So the problem reads 3x + 5 + 7x + -3 + -1x + 2.
Now let's simplify this by combining like terms.
We can combine our "x" terms first.
3x + 7x + -1x simplifies to +9x.
Now, 5 + -3 + 2 simplifies to 4.
So our answer is 9x + 4.
Answer:
none of the equations are true, B!
Step-by-step explanation:
8 isn't equal to 7
9 isn't equal to 8
and 125 isn't equal to 15 :D
Answer:
15
Step-by-step explanation:
Solve using the left-> right rule. Note that they all have addition signs and that they are all positive numbers:
3 + (8) + 4 = 3 + 8 + 4 = (3 + 8) + 4 = (11) + 4 = 15
15 is your answer.
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