3X - 16 = 2
add 16 to both sides
3X - 16 + 16 = 2 + 16
3X = 18
divide both sides integers by 3
(3/3)X = 18/3
X = 6
----------------check in original equation
3(6) - 16 = 2
18 - 16 = 2
2 = 2
-------------checks
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5x + 2 - 3x = 16 Combining terms: 2x + 2 = 16 Subtract 2 from both sides: 2x = 14 Divide both sides by 2: x = 7
3x2 + 2x = 16 ∴ 3x2 + 2x - 16 = 0 ∴ 3x2 - 6x + 8x - 16 = 0 ∴ 3x(x - 2) + 8(x - 2) = 0 ∴ (3x + 8)(x - 2) = 0 ∴ x ∈ {-8/3, 2}
3x - 5 = 2y3/2X - 5/2 = y
3x + 16 = 22 3x = 6 x = 6/3 x = 2
(2, 2)