Question

реши уравнения 900-12×(x÷30+52)=180

Answer 1

900-12*(х:30+52)=18012*(х:30+52)=900-18012*(х:30+52)=720ч:30+52=720:12х:30+52=60х:30=60-52х:30=8х=30*8х=240