Question

Simplify and solve for the value of is z=-1and 2(1)3z(3z-1/3)+2. (2)z³(z-5)​

Answer 1

Step-by-step explanation:

Answer

Given,

x−2y+3z=11−−−−−(1)

3x+y−z=2−−−−−−(2)

5x+3y+2z=3−−−−−(3)

Multiplying (1) with 3 and then solving with (2),we get,

10z−7y=31−−−−−(4)

Multiplying (1) with 5 and then solving with (3),we get,

z−y=4−−−−−−(5)

Now,multiplying (5) with 7 and then solving with (4),we get,

=>z=1

Putting the value of z in (5),

y=−3

putting the value of z and y in (1),

x=2