Question

2. Solve the following equations by the trial and error method. a) 5a –12 = 23
please tell ​

Answer 1

Step-by-step explanation:

5a-12=23

5a=23+12

5a=35

a=35/5a=7

Answer 2

Following are the steps for getting the answer:

Given:

5a –12 = 23

To find:

value of a

Solution:

we have to find the value of a

the given equation is  5a –12 = 23

5a –12 = 23

we will transfer -12 to the right-hand side,

we know that, if any integer number transfers from left to right or right to left

the sign of +ve or -ve wil be changed

so,

5a = 23+12

5a=35

a=35/5

a=7

thus, the value of a is 7.