simplify the algebraic expressions:
(i) 8a+3b-7a+2b+11a-b
(ii)2x-6y-3y+12x-9x+8y
(iii)3L-16m+8m-6L-2L-3m
(iv)7p-8q+8p+12q-4q-15p
Answers
Answer:
(i) 8a+3b-7a+2b+11a-b
= 8a-7a+11a+3b-b
= 12a+2b
(ii) 2x-6y-3y+12x-9x+8y
= 2x+12x-9x-6y-3y+8y
= 5x-y
(iii) 3L-16m+8m-6L-2L-3L
= 3L-6L-2L-3L-16m+8m
= -8L-8m
(iv) 7p-8q+8p+12q-4q-15p
= 7p+8p-15p-8q+12q-4q
= 15p-15p-12q+12q
= 0
Answer:
(i) 12a+4b
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(ii) 5x-y
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(iii) -5L-11m
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(iv) 0
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Step-by-step explanation:
(i) 8a+3b-7a+2b+11a-b
= 8a-7a+11a+3b+2b-b
= a+11a+5b-b
= 12a+4b
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(ii) 2x-6y-3y+12x-9x+8y
= 2x+12x-9x-5y-3y+8y
= 14x-9x-9y+8y
= 5x-y
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(iii)3L-16m+8m-6L-2L-3m
= 3L-6L-2L-16m+8m-3m
= -8L+3L-19m+8m
= -5L-11m
________________________
(iv)7p-8q+8p+12q-4q-15p
= 7p+8p-15p-8q+12q-4q
= 15p-15p-12q+12q
= 0-0
= 0
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