Question

please solve it

it's urgent​

Answer 1

Step-by-step explanation:

1.(a) 5x + 15 = 20

5x = 20 - 15

5x = 5

x = 1

(b) The picture isnt clear

(c) 10x + 75 = 3 - 30x

40x = -72

x = -1.8

(d) The picture isnt clear

(e) 7x + 5 = 3x - 6 - 1

4x = -7 - 5

4x = -12

x = -3

2. (a) 2(z + 1) = 3(z - 1)

2z + 2 = 3z - 3

-z = -5

z = 5

(b) The picture isnt clear

(c) 3(x - 7) = 2(x + 7)

3x - 21 = 2x + 14

x = 35

(d) 4(x - 2) = -(5x - 3)

4x - 8 = -5x + 3

9x = 11

x = 11/9