Question

7(x-2) = 2(x-4) solve and verify the answer by substitution

Answer 1

Answer:

7(x-2) = 2(x-4)

7x -14 = 2x-8

7x - 2x = -8 + 14

5x = 6

x= 6/5

x = 1.2

Re-substituting we get,

7(1.2-2) = 2(1.2 -4)

Answer 2

Answer:

7x - 14 _____(1)

2x - 8____(2)

Step-by-step explanation:

WE pick either of the equations and write one variable in terms of the other

7x-14 =0

7x = 14

x= 2 ____(3)

put value of x in equation (2)

2x -8 =0

2(2) - 8 =0

4-8 =0

-4