3d + 8d - d - 5 = 10d - 5 = 5*(2d - 1)
5d + 2(3d) 5d + 6d 11d
Group 5c-2c and 7d-3d and it comes to 3c+4d
is eassy
3a * * * * * Actually, it is 4a.
If you simplify the equation (s+t+s) the answer is 2s+t
When you simplify 49 plus 37 (49+37), the result is 86.
13a
3x
2a² + 6a
3n.
4b
It is an expression and can be simplified to: 3d+f+1