2. 5х+4х=135 3. 544-17х=228 4. 6х+18+х=179 5. (15х-9х):42=18 если можете , то по действиям. Created by olegkoshechkin. matematika-ru

2. 5х+4х=135 3. 544-17х=228 4. 6х+18+х=179 5. (15х-9х):42=18 если можете , то п...

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2. 5х+4х=135
3. 544-17х=228
4. 6х+18+х=179
5. (15х-9х):42=18
если можете , то по действиям

aleksandruklili 5х+4х=135
9х=135
х=135:9
х=15

544-17х=228
17х=544-228
17х=316
х=316:17
х=18.6

6х+18+х=179
7х+18=179
7х=179-18
7х=161
х=161:7
х=23

(15х-9х):42=18
6х:42=18
6х=18*42
6х=756
х=756:6
х=126

3 votes Thanks 2

amymermaid 2.9х=135
х=15
3. -17х= -259
х= 15,2
4. 7х=161
х= 23
5. 0,14х=18
х=126

0 votes Thanks 0

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