7x+4−14−x=23. 2x+3+x+32=103. 2xx+2+x+22x=2. 3(x−1)x+1−2(x+1)x−1=5. 2x+52x−5=7x−52x. 3x−14x+7=x+1x+7. 2x−1x+3=x+32x−1. x+4x−4−x+2x−3=1. 4x−1−5x+2=12. 2x−1=3x−2+2x−4. 5x−2−3x−1=12. $\dfrac{x}{7 - x} + \dfrac{7