Answer:
1. Solution:
3n-7= 8
3n= 8+7
3n/3 = 15/3
n= 5
Checking:
3(5)-7= 8
15-7= 8
8 = 8 ✓
2. Solution:
w/2-3= 7
w/2= 7+3
w/2= 10
w= 10(2)
w= 20
20/2-3= 7
10-3= 7
7 = 7 ✓
1. 3n - 7= 8
answer: n=5
2. w/2 - 3 = 7
answer: w=20
Step-by-step explanation:
3n - 7 = 8
solution:
3n-7=8 move the constant to the right.
3n= 8+7 calculate
3n= 15 Divide both sides.
n=5
w/2 - 3 = 7 multiply both side.
w-6=14 move the constant to the right.
w=14+6 calculate
W=20
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Answers & Comments
Answer:
1. Solution:
3n-7= 8
3n= 8+7
3n/3 = 15/3
n= 5
Checking:
n= 5
3n-7= 8
3(5)-7= 8
15-7= 8
8 = 8 ✓
2. Solution:
w/2-3= 7
w/2= 7+3
w/2= 10
w= 10(2)
w= 20
Checking:
w= 20
w/2-3= 7
20/2-3= 7
10-3= 7
7 = 7 ✓
Answer:
1. 3n - 7= 8
answer: n=5
2. w/2 - 3 = 7
answer: w=20
Step-by-step explanation:
3n - 7 = 8
solution:
3n-7=8 move the constant to the right.
3n= 8+7 calculate
3n= 15 Divide both sides.
n=5
w/2 - 3 = 7 multiply both side.
w-6=14 move the constant to the right.
w=14+6 calculate
W=20