4935÷47+5.4×8.5
3x+7x+10=90 3(x-12)+23=357x-8=2x+27 5x-18=3–2x
x+4=10 x-12=34 8x=964x-30=0 8.3x-2x=63 x÷10=5.2
(x- 4.5)=7 x-25%x=10
3x=5(32-x) 0.36×5-x=
2(x-2)+2=x+1 3-x=2-5(x-1)