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sytnikovakate28
@sytnikovakate28
September 2023
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Дам 12 баллов. 2х+12=5х+30
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saduakasadil7
2х+12-5х-30=0
-3х-18=0
-3х=18
Х=-6
1 votes
Thanks 1
marinaperekos057
2x + 12 = 5x + 30
Віднімемо 2x з обох боків рівняння:
2x - 2x + 12 = 5x - 2x + 30
12 = 3x + 30
12 - 30 = 3x + 30 - 30
-18 = 3x
(-18) / 3 = (3x) / 3
-6 = x
x = -6.
1 votes
Thanks 1
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Answers & Comments
-3х-18=0
-3х=18
Х=-6
2x + 12 = 5x + 30
Віднімемо 2x з обох боків рівняння:
2x - 2x + 12 = 5x - 2x + 30
12 = 3x + 30
12 - 30 = 3x + 30 - 30
-18 = 3x
(-18) / 3 = (3x) / 3
-6 = x
x = -6.