Question

M+ 7 = 3 + m+4
A. m =1/4
B. m =-7
C. no solution
D. infinite solutions

Answer 1

• m+7=3+m+4
• m+7=m+3+4
• m+7=m+7
• 0=0

Both sides are equal equation has infinite solutions

• Option D

Answer 2

• D. infinite solutions

Explanation:

Given equation

• m + 7 = 3 + m + 4

Simplify it to get

• m + 7 = m + 7

We have both sides equal, if we simplify further it will result in correct equation

• 0 = 0

Regardless the value of m, the equation remains correct. It means it has infinite solutions

Correct choice is D