Question

Check whether x = -2 is a solution of the following equation or not : 5x + 3(3 + x) = -7x + 5 .

Answer 1

To check:

x= -2 is a solution of the equation or not....

Solution:

5x+3(3+x) = -7x+5

5x+9+3x= -7x+5

8x+9= -7x+5

8x +7x=5 -9

15x= -4

x= -4/15

So, solution of the given equation is -4/15.

Therefore, -2 is not the solution of given equation.

Answer 2

Answer:

NO.

Step-by-step explanation:

To check whether a number is a solution of an equation or not, just put that number int the given equation and if it satisfies the equation (i.e., the left hand expression and right hand expression becomes equal) then it is a solution to that equation otherwise it's not.

So, we can check here as,

5(-2) + 3(3-2) = -7(-2) + 5

=> -10 + 3 = 14 + 5

=> -7 = 19

which is not true, i.e., it doesn't satisfies the equation. Hence x = -2 is not a solution of the given equation.

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