Please help ASAP 40 pts

30

Step-by-step explanation:

If the triangle is equilateral, that means all angles are equal

180/3 = 60  so all angles equal 60 degrees

<Y is an angle in the triangle so it equal 60 degrees

4/3x +20 = 60

Subtract 20 from each side

4/3x +20-20 = 60-20

4/3x = 40

Multiply each side by 3/4 to isolate x

4/3x * 3/4 = 40*3/4

x = 30

ege

step-by-step explanation:

egge

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: