What is 7-(a-b)-4+(3a-2b)
2 answers:
Answer:
3 +2a -b
Step-by-step explanation:
7-(a-b)-4+(3a-2b)
Distribute the minus
7 -a +b -4 +3a-2b
Combine like terms
7-4 -a +3a +b-2b
3 +2a -b
Answer:
Step-by-step explanation:
Distributive property:
↓
A(B+C)=AB+AC
<em>Remove parenthesis first.</em>
<em>7-(a-b)-4+3a-2b</em>
<em>(-a-b)=-a+b</em>
<em>7-a+b-4+3a-2b</em>
<em>Simplify, to find the answer.</em>
<em>7-a+b-4+3a-2b</em>
<em>Group like terms: </em>
<em> ↓</em>
<em>-a+3a+b-2b+7-4</em>
<em>Add numbers from left to right.</em>
<em>-a+3a=2a</em>
<em>2a+b-2b+7-4</em>
<em>b-2b=-b</em>
<em>2a-b+7-4</em>
<em>Adding and subtracting numbers from left to right.</em>
<em>7-4=3</em>
<em>2a+3-b</em>
<em>
, which is our answer.</em>
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