Question

1) Sandra saves 12% of her salary for retirement. This year her salary was $3000 more than in the previous year, and she saved $4,200. What was her salary in the previous year? i want to know the equation form
the topic is math 8 grade writing equations

Answer 1

Hello there.

1) Sandra saves 12% of her salary for retirement. This year her salary was $3000 more than in the previous year, and she saved $4,200. What was her salary in the previous year?

32,000 

Answer 2

Given:
savings 12% of her salary.
savings $4,200
This year's salary: x + 3,000
Last year's salary: x

4,200 represents 12% of her salary.
4,200 / 12% =  35,000 is her salary this year.

x + 3,000 = 35,000
x = 35,000 - 3,000
x = 32,000  her salary last year.