749 is the sum of 495 plus 254
Step 1: Simplify both sides of the equation.
x−7=15+3x
x+−7=15+3x
x−7=3x+15
Step 2: Subtract 3x from both sides.
x−7−3x=3x+15−3x
−2x−7=15
Step 3: Add 7 to both sides.
−2x−7+7=15+7
−2x=22
Step 4: Divide both sides by -2.
−2x/−2=22/−2
x=−11
Answer:
Step-by-step explanation:
Let c represent the number of child tickets sold. Then 2c-14 is the number of adult tickets sold, and total revenue is ...
5c +8(2c-14) = 728
21c -112 = 728 . . . . . . simplify
21c = 840 . . . . . . . . . . add 112
c = 40 . . . . . . . . . . . . . divide by 21
2c-14 = 66 . . . . . . . . . number of adult tickets sold
66 adult tickets and 40 child tickets were sold.
Answer:
4(4x+9
Step-by-step explanation:
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