Answer:
<h3>
∠XYZ = 102</h3><h3>
</h3>
Step-by-step explanation:
<u>1st step is to solve x from ΔWXY</u>
∠W + ∠X + ∠Y = 180
where ∠W = 5x + 2
∠X = 7x + 4
∠Y = 180 - (15x - 18)
= 198 - 15x
now plugin values into the equation:
5x + 2 + 7x + 4 + 198 - 15x = 180
combine similar terms:
5x + 7x - 15x = 180 - 2 - 4 - 198
simplify:
-3x = -24
x = -24 / -3
x = 8
<u>2nd step is to substitute x = 8 into ∠XYZ</u>
∠XYZ = 15x - 18
∠XYZ = 15(8) - 18
∠XYZ = 102
Answer:
90
Step-by-step explanation:
Answer:
x = -1/10
Step-by-step explanation:
3 + 2/5x = -1
multiply through by 5x to make the equation linear
3 × 5x + 2/5x × 5x/1 = -1 × 5x
15x + 2 = -5x
collect like terms
15x + 5x = -2
20x/20 = -2/20
x = - 1/10
What's the rest?
it said I need 20characters so that's why this part is on lol