1. х+7-2х=10
-х=3
х=-3
2. 2х+11-4х=21
-2х=10
-х=-5
х=5
3. 3х+4х=19-5
7х=14
х=2
4. х+3-6х=23
-5х=20
-х=4
х=-4
5. 7х+5х=25-13
12х=12
х=1
6. х+10-20х=29
-19х=19
-х=1
х=-1
7. 4х+2-6х=13
-2х=11
-х=5,5
х=-5,5
8.
x=
x=13.5
9.
x=10.5
10. 5x-0.5x-9=18
4.5x=9
x=2
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1. х+7-2х=10
-х=3
х=-3
2. 2х+11-4х=21
-2х=10
-х=-5
х=5
3. 3х+4х=19-5
7х=14
х=2
4. х+3-6х=23
-5х=20
-х=4
х=-4
5. 7х+5х=25-13
12х=12
х=1
6. х+10-20х=29
-19х=19
-х=1
х=-1
7. 4х+2-6х=13
-2х=11
-х=5,5
х=-5,5
8.
x=
x=
x=13.5
9.
x=
x=10.5
10. 5x-0.5x-9=18
4.5x=9
x=2