Question

解方程1.75+2x=2.69 0.2：x=1/4:0.5

Answer 1

1.75+2x=2.69

2x=2.69-1.75

2x=0.94

x=0.94÷2

x=0.47

0.2：x=1/4:0.5

1/4x=0.2×0.5=0.1

x=0.1÷1/4

x=0.4