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shcola42
@shcola42
July 2022
2
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чему равен корень уравнения:
1) -9(6х+1)=-45(2х+2,6);
2) 0,6(2х+1)=-1,8(3х-4).
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Answers & Comments
nastasia4158
1.-54×-9=-90×-117
-54×+90×=-117+9
36×=-108
×=-3
кажется так
0 votes
Thanks 2
selmash21
1.
-54х-9=-90х-117
-54х+90х=-117+9
36х=-108
х=-108÷36
х=-3
2.
1.2х+0.6=-5.4х+7.2
1.2х+5.4х=7.2-0.6
6.6х=6.6
х=6.6÷6.6
х=1
1 votes
Thanks 4
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Answers & Comments
-54×+90×=-117+9
36×=-108
×=-3
кажется так
-54х-9=-90х-117
-54х+90х=-117+9
36х=-108
х=-108÷36
х=-3
2.
1.2х+0.6=-5.4х+7.2
1.2х+5.4х=7.2-0.6
6.6х=6.6
х=6.6÷6.6
х=1