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x= 1.67(rnd) 5= -4+3x+4 5- -4= 9 9=3x+4 9-4=5 5=3x x= 1.67(rnd)
3x + 4 + 9 - 6 = 3x + 7----If you ment 3x + 4 + 9 = 6=> 3x + 13 = 6{subtract 13 from both sides}=> 3x = -7{divde by 3 on both sides}=> x= -7/3
7x - 9 = 3x + 5 7x - 3x - 9 = 5 7x - 3x = 5 + 9 4x = 14 x = 14/4
3x + 4 = 4x - 5 Add 5 to both sides: 3x + 9 = 4x Subtract 3x from both sides: 9 = x
It is equivalent to 11x+9 when simplified