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→2x-(1-3x)-4× x/3 = 1
→2x-(-3x+1)-4x/3=1
→2x-(-3x+1) - 2² × x/3 =1
→2x+3x-1- 2 ² × x / 3 = 1
→2x+3x- 2² × x/3 - 1 = 1
→5x - 2²× x / 3 -1 = 1
→(3 (5x ) + (-2 ² × x ) - 3 )/3 =1
→(3 × 5x + (-4x)-3) / 3 = 1
→(15x - 4 x -3 ) / 3 = 1
→(11x-3 )/ 3 = 1
→11x - 3 = 3
→(11 x - 3 ) +3 = 3+3
→11x -3 +3 = 6
→11x = 6
→11x/11 = 6/11
→→→→x = 6/11 ←←←←