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Evaluate the following algebraic expressions when

x = -2, y = -3, z =4
Write the value of the expressions in the boxes

a) 2x+3y

b) 2(y - z)

c) 6x over 2y

This question means you need to divide the top by the value of 2y

Evaluate the following algebraic expressions when x 2 y 3 z 4 Write the value of the expressions in the boxes a 2x3y b 2y z c 6x over 2y This question means you class=

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Answer:

Solutions below

Step-by-step explanation:

This question requires the concept of substitution and order of operations (Bracket > Multiplication / Division > Addition / Subtraction).

Given x = - 2, y = - 3 and z = 4,

a) 2 x + 3 y = 2 (- 2) + 3 (- 3) = - 4 + (- 9) = - 4 - 9

= - 13

b) 2(y - z) = 2 (- 3 - 4) = 2 (- 7) = - 14

c)

[tex] \frac{6x}{2y} \\ = \frac{6( - 2)}{2( - 3)} \\ = \frac{ - 12}{ - 6} \\ = 2[/tex]

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