1,5х+7=10
1,5х=10-7
х=3:1,5
х=2
2,6а-0,9=3
2.6а=3+0.9
а=3.9:2.6
а=1.5
б:10-0.1=0.07
б:10=0.07+0.1
б=0.17х10
б=1.7
2) 2.6a-0.9=3 3)b/10-0.1=0.07
2.6a=3+0.9 b/10=0.07+0.1
a=3.9/2.6 b=0.17x+10
a=1.5 b=1.7
1)1.5+7=10
1.5x=10-7
x=3/1.5
x=2
1,5х+7=10
1,5х=10-7
х=3:1,5
х=2
2,6а-0,9=3
2.6а=3+0.9
а=3.9:2.6
а=1.5
б:10-0.1=0.07
б:10=0.07+0.1
б=0.17х10
б=1.7
2) 2.6a-0.9=3 3)b/10-0.1=0.07
2.6a=3+0.9 b/10=0.07+0.1
a=3.9/2.6 b=0.17x+10
a=1.5 b=1.7
1)1.5+7=10
1.5x=10-7
x=3/1.5
x=2