If (a, –5) is a solution to the equation 3a = –2b – 7, what is a? Question 11 options: a) -1 b) 4 c) 0 d) 1
Mathematics · Middle School · Tue Nov 03 2020
llm
Answered on
Given:
(a, –5) is a solution to the equation 3a = –2b – 7,
Determine a.
Solution:
Since we already have the value of, we can simply substitute it to the equation in order to find the value of a.
3a = -2b - 7
3a = -2(-5) - 7
3a = 10 -7
3a = 3
Divide both sides by 3 in order to find the value of a.
a = 1
Final answer:
d) 1