Question

Plz help

a diagram with line m parallel to line n is shown express the value of y in terms of x

Answer 1

y = 170 - 3x

Explanation:

l // m

y + 3x + 10 = 180 {co interior angles are supplementary}

y + 3x = 180 - 10 {Subtract 10 from both sides}

y+ 3x = 170 {Subtract 3x from both sides}

y = 170 - 3x