3x + 7x = 50
10x = 50
x = 5
1) 3 × 5 = 15
2) 7 × 5 = 35
ответ: 15; 35.
3х+7х=50
10х=50
х=5
3х=3*50=15
7х=7*50=35
{15;35}
3x + 7x = 50
10x = 50
x = 5
1) 3 × 5 = 15
2) 7 × 5 = 35
ответ: 15; 35.
3х+7х=50
10х=50
х=5
3х=3*50=15
7х=7*50=35
{15;35}