5•6+3•8=54
ответ:5 Жуков; 3 паука
5•3+6•2=27
ответ:5 трёзколёсних; 6 двузколёсних.
Покрокове пояснення:
Пошаговое объяснение:
1) 5 + 4х = 6 + 3х
4x - 3x = 6 - 5
x = 1
2) 5х – 3 = 3х + 1
5x - 3x = 1 + 3
2x = 4
x = 2
3) -8 + 2х = х - 5
2x - x = 8 - 5
x = 3
4) 9 – 3х =1 + х
x + 3x = 9 - 1
4x = 8
x = 2
5) 6х – 7 = 8 + 3х
6x - 3x = 8+7
3x = 15
x = 5
6) 4х – 2 = 10 + 2х
4x - 2x = 10+2
2x = 12
x = 6
7) 3 – 4х = 17 – 6х
6x - 4x = 17 - 3
2x = 14
x = 7
8) 9х – 1 = 8 х + 7
9x - 8x = 7+1
x = 8
9) 4х – 6 = 2х + 12
4x - 2x = 12+6
2x = 18
x = 9
10) 3х + 3 = 2х + 13
3x - 2x = 13 - 3
x = 10
11) 9 – 3х = 20 – 4х
4x- 3x = 20 - 9
x = 11
12) 7х – 1 = 5х +23
7x - 5x = 23+1
2x = 24
x = 12
13) 2 – 3х = 28 – 5х.
5x - 3x = 28 - 2
2x = 26
x = 13
14) 6х + 3 = 5х + 17
6x - 5x = 17-3
x = 14
15) 8х – 10 = 6х + 20
8x - 6x = 20+10
2x = 30
x = 15
16) 17х -1 = 15 +16х
17x - 16x = 15+1
x = 16
17) 19 + 3х = 5х – 15
5x - 3x = 19 + 15
2x = 34
x = 17
18) 6 +2х = 4х – 30
4x - 2x = 6+30
2x = 36
x = 18
19) 5х+ 3 = 4х +22
5x - 4x = 22 - 3
x = 19
20) 2 + 2х = х +24
2x - x = 24 - 2
x = 22
21) 5 + 7х =26 + 6х
7x - 6x = 26 - 5
x = 21
Надеюсь ты получишь самую высокую оценку)))