Step-by-step explanation:
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Answer: -13-3X
Combine like terms.
-6-7= -13
13X- 16X= -3X
S=a-63
s+a=487, using s from above in this equation you get:
a-63+a=487 combining like terms
2a-63=487 adding 63 to both sides
2a=550 dividing both sides by 2
a=275
So there were 275 adult tickets sold.
Answer:
x = 0
Step-by-step explanation:
Multiply the first equation by -3 and add the second equation.
-3(-x +2y) +(6y) = -3(6) +(x +18)
3x -6y +6y = -18 +x +18 . . . . eliminate parentheses
3x = x . . . . . . . . .simplify
2x = 0 . . . . . . . . subtract x
x = 0 . . . . . . . . . .divide by 2
