Question

if (4, a) is a solution of 2x+3y=23, then a=5,True or False​

Answer 1

Answer:

True

Step-by-step explanation:

(4, a)

2x+3y=23

put x=4 and y=a

Then, 2×4+3×a=23

• 8 + 3a = 23

• 3a = 23 - 8

• 3a = 15

• a = 15/3

• a = 5

Answer 2

Given,

An equation: 2x+3y=23

(4, a) is a solution of the given equation.

The value of a is given 5.

To find,

Whether it's true or false that the value of a is 5.

Solution,

We can simply solve this mathematical problem using the following process:

According to the question;

(4, a) is a solution of the given equation

=> The value of the given equation is satisfied when x is 4 and y is a

=> 2(4) + 3(a) = 23

=> 3a + 8 = 23

=> 3a = 15

=> a = 5 (as given in the question)

Hence, the value of a given in the question is true.