2x + 3y = 23 método de sustitución (proceso)

y=7 and x=1

Step-by-step explanation

2(1)+3(7)=23

Y=7 and x=1

Step-by-step explanation:

Hope this helps

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

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because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram