655pomogite pogaluysta. Created by Katerinadi1. matematika-ru

655pomogite pogaluysta...

August 2022 1 6 Report

655
pomogite pogaluysta

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21Pilots 1)2(11x-5)-17x=55
22x-17x=55
5x=55
x=55/5
x=11
2)5(8x+3)-12=83
40x+15-12=83
40x=83-15+12
40x=80
x=80/40
x=2
3)7(2x+9)+3x=114
14x+63+3x=114
17x=114-63
17x=51
x=51/17
x=3
4)3(4x+13)-25=74
12x+39-25=74
12x=74-39+25
12x=60
x=60/12
x=5.

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