Question

Solve for z.

–2.9 + 4.2z = –14.73 − 12.74 + 0.3z

z =

Answer 1

`\boxed{z = -6.3}`

Explanation:

`= > - 2.9 + 4.2z = - 14.73 - 12.74 + 0.3z \\ \\ = > - 2.9 + 4.2z = - 27.47 + 0.3z \\ \\ = > 4.2z - 2.9 = 0.3z - 27.47 \\ \\ = > 4.2z - 0.3z - 2.9 = - 27.47 \\ \\ = > 3.9z = - 27.47 + 2.9 \\ \\ = > 3.9z = - 24.57 \\ \\ = > z = - (24.57)/(3.9) \\ \\ = > z = - 6.3`