Question

Решите уравнения: 1. 30*y-2*y=532 2. t+6*t-5=72 3. 4*x+3*x=77 4. 19*x-3*x+5=133 5. 16*x*5*5=80*70 6. 56+8*x=7*8+2*32

Answer 1

1. 30у-2у=532
    28у=532
       у=532 : 28
       у=19

2. t+6t-5=72
    7t-5=72
    7t=72+5
     7t=77
       t=11

3. 4х+3х=77
    7х=77
     х=77 : 7
     х=11

4. 19х-3х+5=133
    16х+5=133
    16х=133-5
    16х=128
       х=128 : 16
       х=8

5. 16х*5*5=80*70
    16х*25=5600
    400х=5600
         х= 5600 : 400
         х=14

6. 56+8х=7*8+2*32
    56+8х=56+64
    8х=56+64-56
    8х=64
     х=64 : 8
     х=8

Answer 2

1. 30у-2у=532
28у=532
у=532:28
у=19
2. t+6t-5=72
7t=72+5
7t=77 
t=11
3. 4x+3x=77
7x=77
x=11
4. 19x-3x+5=133
16x=133-5
16x=128
x=128/16
x=8
5.16x*5*5=80*70
400x=5600
x=5600/400
x=14
6. 56+8x=7*8+2*32
56+8x=56+64
56+8x=120
8x=120-56
8x=64
x=8

Answer 3

1. 30y - 2y = 532 Combining like terms: 28y = 532 Dividing both sides by 28: y = 19

2. t + 6t - 5 = 72 Combining like terms: 7t - 5 = 72 Adding 5 to both sides: 7t = 77 Dividing both sides by 7: t = 11

3. 4x + 3x = 77 Combining like terms: 7x = 77 Dividing both sides by 7: x = 11

4. 19x - 3x + 5 = 133 Combining like terms: 16x + 5 = 133 Subtracting 5 from both sides: 16x = 128 Dividing both sides by 16: x = 8

5. 16x * 5 * 5 = 80 * 70 Simplifying both sides: 400x = 5600 Dividing both sides by 400: x = 14

6. 56 + 8x = 7*8 + 2*32 Simplifying both sides: 56 + 8x = 56 + 64 Subtracting 56 from both sides: 8x = 64 Dividing both sides by 8: x = 8

Therefore, the solutions to the equations are: 1. y = 19 2. t = 11 3. x = 11 4. x = 8 5. x = 14 6. x = 8