Question

como se ase -7n+45=-5n+15
92+3x=5x+100
-5y+85=2y+15
2(h3)=8
2(4x-5)=30
5(x+1)=2(2x+4)
6(x+4)=8(x+10)

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Answer 1

Explicación paso a paso:

a) -7n+45 = -5n+15

- 7n + 5n = 15 - 45

- 2n = - 30

n = -30/-2

n = 15

b) 92+3x=5x+100

3x - 5x = 100 - 92

- 2x = 8

x = 8/-2

x = - 4

c) -5y+85=2y+15

-5y + 2y = 15 -85

-3y = - 70

y = -70 / -3

y = 23,3

d) 2(h3)=8

6h = 8

h = 8 / 6

h= 4 / 3

e) 2(4x-5)=30

8x - 10 = 30

8x = 30 + 10

x = 40/8

x = 5

f) 5(x+1)=2(2x+4)

5x + 5 = 4x + 8

5x - 4x = 8 - 5

x = 3

g) 6(x+4)=8(x+10)

6x + 24 = 8x + 80

6x - 8x = 80 - 24

- 2x = 56

x = 56 / -2

x = - 28