Question

1.3x + 5 = -7
2.7b +8 = 9b -4
3. 7y = -28
4. 6y = -2
9
5.5x -2 = 4x + 6
6. 40 = 20m

Answer 1

Respuesta:

1) 3X +5 = -7

3X. = -12

X. = -4

2). 7b +8 = 9b -4

8 + 4 = 9b -7b

12. = 2b

12 ÷2 = b

6. = b

3). 7y = 28

y. = -28 -7

y. = -35

4). 6y = -2

y. = -2 -6

y. = -8

5) 5x -2 = 4x +6

5x -4x = 2+6

x. =8

6) 40 = 20m

40 -20 = m

20. = m