Respuesta :
(-y + 5a - 4) + (-3y - a - 5)
= 5a-a-y-3y-4-5 <---- Group like terms
= 4a-y-3y-4-5 <---- Add similar elements
= 4a-4y-4-5 <---- Add similar elements (cont.)
= 4a-4y-9
= 5a-a-y-3y-4-5 <---- Group like terms
= 4a-y-3y-4-5 <---- Add similar elements
= 4a-4y-4-5 <---- Add similar elements (cont.)
= 4a-4y-9
Answer:
4a-4y-9
Step-by-step explanation:
First we need to get rid of the brackets: - y + 5a - 4 -3y - a - 5
Because it a minus sign in the second the bracket and we need to add, all the terms are negative. Then we add like terms: - 4y + 4a - 9
Then we put a positive term in front: 4a - 4y - 9