One piece at a time:
4(p+2) means 4 times everything inside the parentheses.
That's
4(p) + 4(2) = 4p + 8 .
3(2p-3) means 3 times everything inside the parentheses.
That's
3(2p) + 3(-3) = 6p - 9 .
Now add everything up:
4p + 8 + 6p - 9 .
Add all the p's together: 4p + 6p = 10p
Add all the plain numbers together: 8 - 9 = -1
The final result is: 10p - 1 .
Answer:
1.43
Step-by-step explanation:
12 tenths ⇒ 1.2
23 hundredths ⇒ 0.23
0.23 + 1.2 = 1.43
Answer:
Step-by-step explanation:
→ Simplify the (2/7)² term
→ Simplify the 2² term
→ Evaluate
Answer:
equation 3
Step-by-step explanation:
-5x+4y=20 (2)
10x-8y=-40
=============
-10x+8y=40
10x-8y=-40
-------------------------- ( - )
-20x == => x=0
-5*0+4y=20 => 0+4y=20 => 4y=20 => y=5
