3(a+1)=9(a-4) plz answer my question
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When bracket is open, the number outside the bracket get multiplied with all of the numbers present inside the bracket.
3(a + 1) = 9(a - 4)
Opening ( ) brackets, we get
3 × a + 3 × 1 = 9 × a - 9 × 4
3a + 3 = 9a - 36
3a - 9a = 36 - 3
- 6a = 33
a = 33 / - 6
a = 11 / - 2
a = - 11 / 2
Hence,
Value of a = - 11 / 2
#JoinBrainly
3(a + 1) = 9(a - 4)
Opening ( ) brackets, we get
3 × a + 3 × 1 = 9 × a - 9 × 4
3a + 3 = 9a - 36
3a - 9a = 36 - 3
- 6a = 33
a = 33 / - 6
a = 11 / - 2
a = - 11 / 2
Hence,
Value of a = - 11 / 2
#JoinBrainly
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shiva200374:
but 36 is -
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