Solve the simultaneous equation,5a-2b=14, 2a+2b=14 what is the answer

a = 4 and b = 3

Explanation:

The first given equation is:

5a - 2b = 14

This equation can be rewritten as :

2b = 5a - 14 > equation I

The second given equation is:

2a + 2b = 14 > equation II

Substitute with equation I in equation II and solve for "a" as follows:

2a + 2b = 14

2a + 5a - 14 = 14

7a = 28

a = 4

Now, substitute with "a" in equation I to get "b" as follows:

2b = 5a - 14

2b = 5(4) - 14

2b = 6

b = 3

Hope this helps :)

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.

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