0.3 x=7.2 x+450=550 0.6+x=2.7 x-0.52=1.3 13.2+x=16.3
x÷14=98 x-35=95 76+x=91 x+4.8=8 x-4.5=3.6
0.8+x=9.1 4x=168 x÷3=5.5 0.9x=2.43 x÷1.2=7
x-257=582 x÷15=180 14x=7 x÷2.5=0.8 360+x=710
1.5 x=4.5 120-x=35 3.6÷x=0.6 5x=40 x+4.1=9
x-105=15 x÷0.7=1.2 2.1x=0.84 x=56=102 2.4÷x=6
x-970=270 20x=160 6.6+x=24.5 15x=3 12.6-x=3.6