Question

5 - 3x if x = -2

3x + 4 - 8y if x = -3 and y = 1

Explanation:

Step1: Evaluate \(5 - 3x\) when \(x = -2\)

Substitute \(x=-2\) into the expression: \(5-3\times(-2)\)
Calculate multiplication: \(5 + 6\)

Step2: Evaluate \(3x + 4 - 8y\) when \(x = -3\) and \(y = 1\)

Substitute \(x=-3\) and \(y = 1\) into the expression: \(3\times(-3)+4-8\times1\)
Calculate multiplications: \(-9 + 4 - 8\)
Calculate additions and subtractions: \(-5 - 8=-13\)

Answer:

For \(5 - 3x\) when \(x = -2\): \(11\)
For \(3x + 4 - 8y\) when \(x = -3\) and \(y = 1\): \(-13\)