187-х=35•3. 450:у=1000:20

Question

187-х=35•3. 450:у=1000:20

Answer 1

187-x=35*3
187-x=105
x=187-105
x=82
450:y=1000:20
450:y=50
y=450:50
y=9

Answer 2

187-х=105
×=187-105
×=82
187-82=35×3
105=105

450:у=1000:20
450:у=50
у=450:50
у=9
450:9=1000:20
50=50