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Question:
7[7x-7+4(x+1)]=-7
..
Solution:
7[7x-7+4x+4]=-7 {Bracket opened}
7[-3+11x]=-7 {-7+4=-3 and 7x+4x=11x}
-21+77x=-7 {Bracket open making 7 multiplied by "-3" and "11'}
77x=21-7 {Taking "-21" to other side makes it positive signed}
77x=14
x=14/77
x=0.18
7[7x-7+4(x+1)]=-7
..
Solution:
7[7x-7+4x+4]=-7 {Bracket opened}
7[-3+11x]=-7 {-7+4=-3 and 7x+4x=11x}
-21+77x=-7 {Bracket open making 7 multiplied by "-3" and "11'}
77x=21-7 {Taking "-21" to other side makes it positive signed}
77x=14
x=14/77
x=0.18
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