3 ( 110 - 7x )= x - 66
2 answers:
X is 18
You need to algebraically move things around by adding/dividing on both sides (work shown in the picture).
You need to algebraically move things around by adding/dividing on both sides (work shown in the picture).
Solve Equation:
3 ( 110 - 7x ) = x - 66
Simplify both sides:
3 ( 110 - 7x ) = x - 66
( 3 ) ( 110 ) + ( 3 ) ( - 7x ) = x + - 66
Distribute:
330 + -21x = x + - 66
- 21x + 330 = x - 66
Step 2: Subtract x both sides:
- 21x + 330 - x = x - 66 - x
- 22x + 330 = -66
Step3: Subtract 330 both sides:
- 22x + 330 - 330 = - 66 - 330
- 22x = - 396
Step 4: divide both sides by - 22:
- 22x / - 22 = - 396 / - 22
x = 18
Answer: 3 ( 110 - 7x ) = x - 66 =====> x = 18
Hope that helps!!!! : )
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Answer:
B
Step-by-step explanation:
Note the common difference between consecutive terms of the sequence.
d = 16 - 12 = 20 - 16 = 4
This indicates the sequence is arithmetic with sum to n terms
=
[2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
Here a₁ = 12 and d = 4, thus
=
[ (2 × 12) + (41 × 4) ]
= 21( 24 + 164) = 21 × 188 = 3948 → B