Question

a) 2-(3-a)=-4
b) 7 x + 29=15
c) 2y-3/4=-5

d) m-(-4)=-9
e)7-(12-p)=-9 f)3/4(p-1)=9 Find the value of the variables ​

Answer 1

Answer:

Hello friends

Answer 2

Step-by-step explanation:

a) 2 - (3 - a) = - 4

2 - 3 + a = - 4

- 1 + a = - 4

a = - 4 + 1

a = - 3

b) 7x + 29 = 15

7x = 15 - 29

7x = - 14

x = - 14/7

x = - 2

c) 2y - 3/4 = - 5

(8y - 3) / 4 = - 5

8y - 3 = - 5 × 4

8y - 3 = - 20

8y = - 20 + 3

8y = - 17

y = -17/8

d) m - (- 4) = - 9

m + 4 = - 9

m = - 9 - 4

m = - 13

e) 7 - (12 - p) = - 9

7 - 12 + p = - 9

- 5 + p = - 9

p = - 9 + 5

p = - 4

f) question not clear

if it is

$\frac{3}{4} (p - 1) = 9 \\ p - 1 = 9 \times \frac{4}{3} \\ p - 1 = 12 \\ p = 12 + 1 \\ p = 13$

Or

if it is

$\frac{3}{4(p - 1)} = 9 \\ \frac{3}{4p - 4} = 9 \\ 3 = 9(4p - 4) \\ 3 = 36p - 36 \\ 36p = 3 + 36 \\ 36p = 39 \\ p = \frac{39}{36} \\ p = \frac{13}{12}$

hope you get your answer