Question

x+1=2x-7
6x+6=4+8x
9+9x=17+5x
2x+3=3x

Answer 1

Explicación paso a paso:

a) x+1=2x-7

1 + 7 = 2x - x

8 = x

comprobación

x+1=2x-7

8 + 1 = 2 × 8 -7

9 = 16 - 7

9 = 9 ✅

b) 6x+6=4+8x

6 - 4 = 8x - 6x

2 = 2x

2/2 = x

1 = x

comprobación

6x+6=4+8x

6 × 1 + 6 = 4 + 8 × 1

6 + 6 = 4 + 8

12 = 12 ✅

c) 9+9x=17+5x

9x - 5x = 17 - 9

4x = 8

x = 8 / 4

x = 2

comprobación

9+9x=17+5x

9 + 9 × 2 = 17 + 5 × 2

9 + 18 = 17 + 10

27 = 27 ✅

d) 2x+3=3x

3 = 3x - 2x

3 = x

comprobación

2x+3=3x

2 × 3 + 3 = 3 × 3

6 + 3 = 9

9 = 9 ✅

espero te sirva:)♡