Question

解方程 (x+8)÷3=6.5(x+4.5)×4=20 (x+1.5)×5=17.5

Answer 1

(x+8)÷3=6.5

(X+8)=6.5乘以3

X=19.5-8 X=11.5

(x+4.5)×4=20

(x+4.5)=20除以4

(x+4.5)=5 X=5-4.5 X=0.5

(x+1.5)×5=17.5

(x+1.5)=17.5除以5

(x+1.5)=3.5 X=3.5-1.5 X=2