а)13(x-13)+14(14x-2)=11(3x-11)+28+(10x-21)
13x-169+196x-28=33x-121+28+10x-21
209x-197=43x-114
209x-43x=-114+197
166x=83
б)-15(15+y)-12(12y+1)+10=16(3y-16)-17(y+17)
-225-15y-144y-12+10=48y-256-17y-289
-227-159y=31y-545
-159y-31y=-545+227
-190y=-318
190y=318
в)18(18-x)-20(2x+20)-8=19(19-3x)-25(x+25)
324-18x-40x-400-8=361-57x-25x-625
-58x-84=-82x-264
-58x+82x=-264+84
24x=-180
г)-21(2x-21)+24(24-3x)-29=30(x+30)-22(-3x-22)
-42x+441+576-72x-29=30x+900+66x+484
-114x+988=96x+1384
-114x-96x=1384-988
-210x=396
96х - 96 - 7х + 64 = 76 - 38х +51 + 6х + 83
96х - 7х +38х - 6х = 76 + 51 + 83 + 96 - 64
121х = 242
х = 2
б) -(10х-18)+19(4+3х)=9 - 21(х+7)+4(18-3х)
-10х + 18 + 76 + 57х = 9 - 21х - 147 + 72 - 12х
47х + 21х + 12х = 9 - 147 + 72 - 18 - 76
80х = -160
х = -2
в) 18(18-х) - 20(2х+20) - 8 = 19(19-3х) - 25(х+25)
324 - 18х - 40х - 400 - 8 = 361 - 57х - 25х - 625
-18х - 40х + 57х + 25х = 361 - 625 - 324 + 408
24х = -180
х = -7,5
а)13(x-13)+14(14x-2)=11(3x-11)+28+(10x-21)
13x-169+196x-28=33x-121+28+10x-21
209x-197=43x-114
209x-43x=-114+197
166x=83
б)-15(15+y)-12(12y+1)+10=16(3y-16)-17(y+17)
-225-15y-144y-12+10=48y-256-17y-289
-227-159y=31y-545
-159y-31y=-545+227
-190y=-318
190y=318
в)18(18-x)-20(2x+20)-8=19(19-3x)-25(x+25)
324-18x-40x-400-8=361-57x-25x-625
-58x-84=-82x-264
-58x+82x=-264+84
24x=-180
г)-21(2x-21)+24(24-3x)-29=30(x+30)-22(-3x-22)
-42x+441+576-72x-29=30x+900+66x+484
-114x+988=96x+1384
-114x-96x=1384-988
-210x=396