(2-x)/(3+x) = 1/2 + 1/(x+3)(2-x)/(x+3) - 1/2 - 1/(x+3) = 0{ 2(2-x) - (x+3) - 2 } / { 2(x+3) } = 0{ 4-2x - x-3 - 2 } / { 2(x+3) } = 0{ -3x - 1 } / { 2(x+3) } = 0-3x - 1 = 0x = -1/3