Question

A. 5y = 13

b. 1
--- x = - 2
7

c. - 7b = 7
---
8

d. 7 x + 7 = 35

i. 1
-- x + 5 = x +8
2

Answer 1

A. 5y = 13/:5
y=2.6


b. 1
--- x = - 2/*7
7
x=-14

c. - 7b = 7/*8
---
8
-7b=56/:(-7)
b=-8
d. 7 x + 7 = 35
7x=35-7
7x=28/:7
x=4

i. 1
-- x + 5 = x +8
2
½x-x=8-5
½x=3/*2
x=6