Question

Is (1,8) a solution to the linear equation 20x- 2y= 5

Answer 1

Answer:

no

Step-by-step explanation:

20×1-2×8=5

20-16=5

4≠5

therefore (1,8) is not a solution to the linear pair 20x-2y=5.

Answer 2

20x - 2y = 5

Given x = 1 and y = 8

substitute in LHS

20 × 1 - 2 × 8

20 - 16

= 4

LHS = 4

RHS = 5

LHS not equal to RHS

(1,8) is not a solution to the linear equation 20x - 2y = 5