Question

решите уравнение 1) 21(18+х)=714 2) 16(4х-34)=608 3) 12(152+19х)=2052

Answer 1

21(18+x)=714
378+21x=714
21x=714-378
21x=336:21
x=16
16(4x-34)=608
64x-544=608
64x=608+544
64x=1152:64
x=18
12(152+19x)=2052
1824+228x=2052
228x=2052-1824
228x=228:228
x=1

Answer 2

1)21(18+х)=714
378+21х=714
21х=714-378
21Х=336
Х=16
2)16(4х-34)=608
64х-544=608
64х=608+544
64х=1152
х=18
3)12(152+19х)=2052
1824+228х=2052
228х=2052-1824
228х=228
х=1