Question

Combine each pair of equations solve the combined equation 3j +14=-5z-10j=5z

Answer 1

Given data:

The first equation is 3j +14=-5z.

The second equation is -10j=5z​ .

Add both the equations.

`\begin{gathered} (3j+14)+(-10j)=-5z+5z \\ -7j+14=0 \\ 7j=14 \\ j=2 \end{gathered}`

Substitute 2 for j in the first equation.

`\begin{gathered} 3(2)+14=-5z \\ 20=-5z \\ z=-4 \end{gathered}`

Thus, the value of j is 2 and z is -4.