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What is 8x-4equlals 3x plus 21?
If: 8x-4 = 3x+21 Then: 8x-3x = 21+4 => 5x = 25 => x = 25/5 Therefore: x = 5
21 equals 5x plus 3x plus 5?
Subtract 5 from each side: 16 = 5x + 3x ie 16 = 8xDivide each side by 8: 2 = x21 = 5x + 3x + 521 - 5 = 8x16 = 8x16/2 = x2 = xx = 2Check:21 = 5(2) + 3(2) + 521 = 10 + 6 + 521 = 21
5x plus 7 equals 3x-21?
5x+7=3x-21 -7= -7 5x=3x-14 -3x=-3x 2x=-14 2x/2x=2x/-14 x=-7 The Answer Is -7 -
5x plus 5 equals 8 - 3x?
5x + 5 = 8 -3x 5x = 3 -3x 8x = 3 x = 0.375
What is the answer to 6x squared-5x-21?
6x2-5x-21 = (3x-7)(2x+3)
