Question

add: 7×y+6yz-4, -9yz+4×y+14

Answer 1

hoping it may help have a good day

Answer 2

Answer:

$7y + 6yz - 4 + ( - 9yz + 4y + 14) \\ \\ = 7y + 6yz - 4 - 9yz + 4y + 14 \\ \\ = 7y + 4y + 6yz - 9yz - 4 + 14 \\ \\ = 11y - 3yz + 10$