the following equations describe consumption, investment, government spending, taxes, and net exports in the…

the following equations describe consumption, investment, government spending, taxes, and net exports in the country of economika. c = 100 + 0.80(y - t), i = 700, g = 450, t = 450, x = 150. in economika, equilibrium gdp is equal to $ (round your asnwer the nearest dollar).
Answer
Explanation:
Step1: Recall GDP formula
In a closed - economy with government and foreign trade, $Y = C+I + G+X$. Substitute $C = 100+0.80(Y - T)$ into the equation. So $Y=100 + 0.80(Y - T)+I + G+X$.
Step2: Plug in given values
Given $I = 700$, $G = 450$, $T = 450$, $X = 150$. Then $Y=100+0.80(Y - 450)+700 + 450+150$.
Step3: Expand and simplify
First, expand $0.80(Y - 450)=0.8Y-360$. So $Y=100 + 0.8Y-360+700 + 450+150$. Combine like - terms: $Y=0.8Y+(100-360 + 700+450+150)$. $Y=0.8Y + 1040$.
Step4: Solve for Y
Subtract $0.8Y$ from both sides: $Y-0.8Y=1040$. $0.2Y = 1040$. Then $Y=\frac{1040}{0.2}=5200$.
Answer:
$5200$