Answer:
a=10
Step-by-step explanation:
11a-(4a-7)=77
11a-4a+7=77
7a+7=77
7a=70
a=10
Answer:
Point form : (- 5/2 , -7)
Equation form : x= -5/2 , y=-7
Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.
Hope this helps you out! If you need anymore help with math, let me know and I will be more than happy to help you out! ☺
-Karleif Jonsi-
This in standard form is -28x + 10.
1x100,000 = 100,000
3x10,000 = 30,000
9x1,000 = 9,000
8x100 = 800
5x10 = 50
2x1 = 2
Add these all together to get your answer. Standard form is the form we usual write numbers in.