If a= x - 3y, b = 2x + 3y and c = -3x + 7, show that a +b+c=7
Answers
Answered by
1
Answer:
Easy Peasy
Step-by-step explanation:
a= x - 3y, b = 2x + 3y and c = -3x + 7
So, a+b+c
= x-3y+2x+3y+(-3x+7)
= x+2x-3x-3y+3y+7
= 3x-3x+7
= 7
Answered by
1
Step-by-step explanation:
Given:a= x - 3y, b = 2x + 3y and c = -3x + 7
To prove
a+b+c=7
Proof:
x - 3y+2x + 3y -3x + 7=7
3x-3x-3y+3y+7=7
0+7=7
7=7
Hence proved
Similar questions