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jayshri97:
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3(7a+4)=-4(a+2)
21a+12=-4a-8
21a+4a=-8-12
25a=-20
a=-20/25
a=-0.8
you have answered first was wrong
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Cross Multiply
7a + 12 = 4a + 8
3a = -4
a = -4/3
how it came can you tell me
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