Question

Simplify by combining like terms 6a + 3b + a + 2

Answer 1

Answer:

$7a+3b+2$

Step-by-step explanation:

$6a+3b+a+2$

Use commutative property of addition $x+y=y+x$

$6a+3b+a+2=6a+(a+3b)+2$

use associative property of addition $x+(y+2)=(x+y)+2$

$6a+(a+3b)+2=(6a+a)+3b+2\\=7a+3b+2$

Hence $6a+3b+a+2=7a+3b+2$