STATE WHAT EACH VARIABLE REPRESENTS. WRITE YOUR SYSTEM OF EQUATIONS.

SOLVE FOR X AND Y.

DONT SKIP ILL GIVE 40 POINTS !!! EXTRA BRAINLIEST !

17 and 53.

Step-by-step explanation:

Let the two unknown numbers be x and y respectively.

Translating the word problem into an algebraic expression, we have;

x + y = 70 equation 1

x - y = 36 equation 2

From equation 1;

x = 70 - y equation 3

Substituting eqn 3 into eqn 2, we have;

70 - y - y = 36

70 - 2y = 36

70 - 36 = 2y

2y = 34

y = 17

Next, we find x;

x = 70 - y

x = 70 - 17

x = 53

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step-by-step explanation:

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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