Question

1. Which of the following are linear equations?
(a) 15-6 = 9
(b) 2x + 5 = 7
2. Solve the following equations by trial-and-error​

Answer 1

Answer:

answer is b

Step-by-step explanation:

....................

Answer 2

Answer:

1 a

Step

-by-step explanation:

b let x be 1

therefore,2(1)+5=7

=7

therefore the value of x is 1