1)-18 (2-x) + 20 = 2) 14 (70)-90- 3) 12 (+1)+50- 4) 42-7(8+y) . 5) 21 -4(x-8 ) — 6.) 8 — (h (6 +16)…
1)-18 (2-x) + 20 =
2) 14 (70)-90-
3) 12 (+1)+50-
4) 42-7(8+y)
. 5) 21 -4(x-8 ) —
6.) 8 — (h (6 +16) -4) (18+%)+(-b — (8) = Daly-5) -119 +у). 2b 80 9) — 4/6 — 2) + 5 (5(-7) –
1. 11+3х=55+4х
3x-4x=55-11
-x=44
x=-44
2.-15-4х=-8+45
-4x=-8+45+15
-4x=52
x=-13
3.-8х-17=3х-105
3x+8x=17-105
11x=-88
x=-8
4.2(y+3)=21-3y
2y+6=21-3y
2y+3y=21-6
5y=15
y=3
5.(2-c)+3(c-3)=-13
2-c+3c-9=-13
2c=-13+9-2
2c=-6
c=-3
6.-3(l-3b)-12=12
-3+9b-12=12
9b=12+12+3
9b=27
b=3