economics questions???? please help!!!

Posted on 2014-11-27 07:44:00 in Economics by PETER

Calculating equilibrium (Y) and the level of savings at that level of income (Y) for:

C=300+.8Yd
I=80
G=120
T=90
X=80
M=100
(Y is income, I is planned Investment, G is gov't purchases, T is tax, x is exports, m is imports)
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I calculated equilibrium income, using Y=(1/1-b)(a-bT+I+G+X-M) and got Y=3,040.

...however, I am confused as to how I calculate the level of savings for that level of income (which is 3,040).

Also, I'm asked "how much will savings increase if G increased by 20?"

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