3. Is the equation true, false or open?

3y + 6 = 5y − 8

Now it’s your turn (Practice):

4. Is (5,15) a solution of the equation y = 3x?

5. Is (3,1) a solution of the equation y = −x + 3

Solve each equation. Check your answer.

7. −4 = z + 3

8. z − 10 = −1

9. 2.5 = 2x

10. −5 = z7

11. −15 = 52x

3. ∴ Equation is

4.  LHS = RHS Hence, is a solution of a given equation.

5. LHS ≠ RHS Hence, is not a solution of a given equation.

7.  

8.

9.

10.  

11.

Step-by-step explanation:

3. We have given the equation . Now, solving the given equation we get,

                           ⇒  

                           ⇒  

                           ⇒  

∴ Equation is

4. Given point is , where and .

Now equation is

                              ⇒           (...)

now putting the value of and in equation (1), we get

                      ⇒

                     ⇒          Here LHS = RHS Hence, is a solution of a given equation.

5. Given point is , where and .

Now equation is

                     ⇒        

now putting the value of and in equation (11), we get

                    ⇒  

                    ⇒      Here LHS ≠ RHS Hence, is not a solution of a given equation.

7. Given equation is  

                                ⇒

                                ⇒  

8. Given equation is

                                ⇒  

                                ⇒  

9. Given equation is

                                ⇒  

                                ⇒  

10. Given equation is

                                ⇒  

11. Given equation is

                                ⇒  

i not know

step-by-step explanation: