Question
Simplify the following algebraic expressions by removing grouping symbols: $5a - (3b - 2a + 4c)$
✓
Answer
We have, $5a - (3b - 2a + 4c)$
Since the $'-'$ sign precedes the parentheses,
we have to change the sign of each term in the parentheses when we remove them.
= $5a - 3b + 2a - 4c = 7a - 3b - 4c$
Since the $'-'$ sign precedes the parentheses,
we have to change the sign of each term in the parentheses when we remove them.
= $5a - 3b + 2a - 4c = 7a - 3b - 4c$
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