y = 6 x 3.5;
If you can't do that in your head, split it up: 6 x 3 = 18, 6 x .5 = 3, 18 + 3 = 21
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If: 6x = 12 Then: x = 2
x = 8
6x - 1 = 29 => 6x = 30 => x = 5 Then x2 + x = 25 + 5 = 30
x2 + 6x - 2 = 0 x2 + 6x + 9 = 13 (x + 3)2 = 13 x + 3 = ± √13 x = -3 ± √13
6X-3 = -51 add 3 to both sides 6X = -48 divide by 6 X = -8