Question

求十道代括号的方程题我急用

Answer 1

5(x+6)=40 4+(x+6)=12 6(x+6)=60 x+(8+2)=10 x(5+5)=20

x(2+8)=50 x(6+4)=30 x(9+1)=40 5(x+5)=2 x(2+7)=2