Question

①4x=5+3x②2x-1=x+3③3y+7=-3y-5④-4x-3=-5x-2⑤3t-6=2t-2⑥2z+1=3-2z

Answer 1

①4x=5+3x 4x-3x=5 x=5

②2x-1=x+3 2x-x=3+1 x=4

③3y+7=-3y-5 3y+3y=-5-7 6y=-12 y=-2

④-4x-3=-5x-2 -4x+5x=3-2 x=1

⑤3t-6=2t-2 3t-2t=6-2 t=4

⑥2z+1=3-2z 2z+2z=3-1 4z=2 x=0.5

⑦-7x-6=22-6x 6x-7x=22+6 x=-28

⑧2y-1=-y+5 3y=6 y=2⑨3x+5x=8x 这题写错了