Question

answer 15 & 16 question
quick urgent!!!!!

Answer 1

so it is  5x + 7/2 = 3x/2 - 14

or 5x - 3x/2 = - ( 14 + 7/2 )

or 10x -3x /2 = - (28 + 7/2)

or 7x/2 = - 35/2

or x =- 7

so next question

7xy + 5yz - 3zx + 4yz + 9zx - 4y  - 3xz  + 5x - 2xy

= 5xy + 9yz + 3zx + 5x - 4y

b)(7x² -4xy +8y² + 5x - 3y) -(5x² - 4y² + 6y -3 )

= 2x² - 4xy + 12y² + 5x - 9y - 3