Answer:
Multiplying the variables and numbers in the parentheses by the number next to them.
Step-by-step explanation:
First, you multiply 42 by .15 which you get $6.30
Then, you subtract $42 by $6.30 which you get the answer: $35.70
You can put the -4 and -9 together and put it at the end to make the new sequence 4-13 which would leave you with -9
Answer:
x= 85
Step-by-step explanation:
(7x+6)-(5x-4)=180
There is a negative 1 between the two parenthesis
-1(5x-4)
-5x+4
Now plug it back into the equation and take out the parenthesis
7x+6-5x+4= 180
2x+10=180 Now we can solve
-10 -10
2x= 170
2x/2 = 170/2
x= 85
I hope this helps! :)
20+x>70
-20. -20. on both sides to even it out
x>50 is the answer
