Algebra: A Combined Approach (4th Edition)

x = - $\frac{7}{3}$ y = - $\frac{44}{3}$
y=5x-3 y=8x+4 Substitude y for 5x - 3 to the second equation. 5x - 3 = 8x + 4 5x - 3 + 3 = 8x + 4 + 3 add 3 to the both sides 5x = 8x + 7 simplify 5x - 8x = 8x + 7 - 8x - 3x = 7 simplify $\frac{ - 3x}{-3}$ = $\frac{7}{-3}$ divide by -3 x = - $\frac{7}{3}$ Substitude x = - $\frac{7}{3}$ to the first equation y = 5 $\times($ - $\frac{7}{3}$ ) - 3 y = - $\frac{35}{3}$ - $\frac{9}{3}$ y = - $\frac{44}{3}$