3(x+5) = 3x + 1537 + 35 = 21 + 15 = 36
Therefore, the correct equation would be:
3x + 15 = 36
Solving for x:
3x = 36 - 153x = 21x = 7
4(x+9) = 4x + 3646 + 49 = 24 + 36 = 60
4x + 36 = 60
4x = 60 - 364x = 24x = 6
3(x+5) = 3x + 15
37 + 35 = 21 + 15 = 36
Therefore, the correct equation would be:
3x + 15 = 36
Solving for x:
3x = 36 - 15
3x = 21
x = 7
4(x+9) = 4x + 36
46 + 49 = 24 + 36 = 60
Therefore, the correct equation would be:
4x + 36 = 60
Solving for x:
4x = 60 - 36
4x = 24
x = 6