Question

If x=1, y=2 and z=5, find the value of 3x-2y+4z ​

Answer 1

Answer:

3×1- 2×2 +4× 5

= 3 - 4+ 20

= -1+ 20

= 19

Answer 2

Topic : Algebraic expressions

‏‏‎

$\begin{gathered} 3x - 2y + 4z \\ = 3 × 1 - 2 × 2 + 4 × 5 \\ = 3 - 4 + 20 \\ = 23 - 4 \\ = 19 \end{gathered}$