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alinafisenko1
@alinafisenko1
July 2022
1
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решите уровнение 9(x+6)=72, 15(2x+11)=285, 14x +5x=608, 53x-26x=1144, 19x-x-14=256, 6y+11y+15=321, 17x - 8x-52=2711 помогите пожалуйсто
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lilitoganesyan
9(x+6)=72
9x+54=72
9x=- 54+72
9x=18
x=2
_____________
15(2x+11)=285
30x+165=285
30x=-165+285
30x=120
x=4
____________
14x+5x=608
19x=608
x=608/19
x=32
____________
53x-26x=1144
27x=1144
x=1144/27
*1144 на 27 не делится
___________
19x-x-14=256
18x-14=256
18x=14+256
18x=270
x=270/18
x=15
__________
6y+11y+15=321
17y+15=321
17y=-15+321
17y=306
y=306/17
y=17
___________
17x-8x-52=2711
9x-52=2711
9x=52+2711
9x=2763
x=2763/9
x=307
1 votes
Thanks 1
alinafisenko1
большушие спасибо
anushkakovalova
ето не правильно!
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Answers & Comments
9x+54=72
9x=- 54+72
9x=18
x=2
_____________
15(2x+11)=285
30x+165=285
30x=-165+285
30x=120
x=4
____________
14x+5x=608
19x=608
x=608/19
x=32
____________
53x-26x=1144
27x=1144
x=1144/27
*1144 на 27 не делится
___________
19x-x-14=256
18x-14=256
18x=14+256
18x=270
x=270/18
x=15
__________
6y+11y+15=321
17y+15=321
17y=-15+321
17y=306
y=306/17
y=17
___________
17x-8x-52=2711
9x-52=2711
9x=52+2711
9x=2763
x=2763/9
x=307