17.) 5/9
18.) 23
19.) 3.7
20.) 4xy^2
hope this helps
Answer:
- simplifies to -2x -17 = 5x -10
- x = -1 . . . . the solution
Step-by-step explanation:
-2(x+5)-7=3x+2(x-5) . . . . starting equation
-2x -10 -7 = 3x +2x -10 . . . eliminate parentheses using the distributive property
-2x -17 = 5x -10 . . . . . . . . . collect terms
-7 -2x = 5x . . . . . . . . . . . . . add 10
-7 = 7x . . . . . . . . . . . . . . . . . add 2x
-1 = x . . . . . . . . . . . . . . . . . . . divide by 7
Answer:
3 1st class tickets and 5 coach tickets
Step-by-step explanation:
1. Subtract 3630 (cost of 3 1st class tickets) from the budget to get 1000.
2. Subtract 1000 (cost of 5 coach tickets) from your remaining budget to get 0.
Answer:
Step-by-step explanation:-1/3(6x+18)+3x+5= -2x - 6 + 3x + 5 = x - 1. QED