Hello!
You have to find what a and b are
3a + 4a = 14
b + 6b = 21
Lets do a first
3a + 4a = 14
Combine like terms
7a = 14
Divide both sides by 7
a = 2
Now lets do b
b + 6b = 21
Combine like terms
7b = 21
Divide both sides by 7
b = 3
Put a and b into the third equation
7( 2 + 3) =
Do what is in parenthesis first
7(5) =
Multiply
35
The answer is 35
Hope this helps!
Answer:
A por tiene todo la respuesta en tus ojos mi querido amigo
Answer:
needs 95% for the fourth quarter
8x+4y=-12
Put the equation in the form y=MX+b (m=slope)
4y=-8x-12
Y=-2x-3
The slope is -2
Hope this helps!
Answer:
c. add 4 on each side and multiply by 8
Step-by-step explanation: