Simplify the expression by combining like terms.2x + 4y + 6 + 2y - 5 + 3x

Step-by-step explanation:

Here is the workings

2x+4y+6+2y-5+3x  combine like terms

2x+3x+4y+2y+6-5

Step 2

2x+3x+4y+2y+6-5   Add the similar exponents

5x+4y+2y+6-5

5x+6y+6-5

Step 3

5x+6y+6-5  Add and subtract

Your answer would be 5x+6y+1

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.