Question

please answer the first question​

Answer 1

Answer:

Find the value of :

i) 4x - 5y when x=2, y=3

ii) 3a+4b when a = - 3 , b= - 6

iii) a+ b- 5c when a= - 4 , b=5, c= 2

iv) x² + 6x -7 when x=1