Answer:
1 a)

1 b)
2 a)

2 b)

Explanation:
Given statements:
1. Find the sum of -7g and 4g + 2
2. Find the difference when 6
is subtracted from 2
- 4
a) To write an expression based on the given statement
b) To simplify the expression
Solution:
1) The expression for sum of
and
is given as:
1 a)

The above expression can be simplified by combining the like terms:
1 b) ⇒
[ As
]
2) The expression for the difference when
is subtracted from
can be given as:
2 a)

The above expression can be simplified by combining the like terms:
2 b) ⇒
[ As
]