This strategy works because if you subtract one number from another the sum of the two numbers should be the that is being subtracted from. (In this case, it's 200)
4 (2x + 3) + 2 (x + 1) - 7
8x + 12 + 2x + 2 - 7
10x + 7
10x = -7
10x/10 = -7/10
x = -7/10
hope this helps
Answer:
13x+14
Step-by-step explanation:
2(3x+4)+6+7x
Distribute:
=(2)(3x)+(2)(4)+6+7x
=6x+8+6+7x
Combine Like Terms:
=6x+8+6+7x
=(6x+7x)+(8+6)
=13x+14
Hundredth: 142
Hundred: 100
Ten: 140
Tenth: 142<span />
Replace the words with what you know
(Original cost)(6%)=5.25
(Original cost)(0.06)=5.25
(original cost)=5.25/0.06=87.5
