Question

Solve the equation for y. Then find the value of y for each value of x. y+5x=9;x= -2, 0, 4

Answer 1

When x = -2

$y+5\left(-2\right)=9$

$y-5\cdot \:2=9$

$y-10=9$

$y-10+10=9+10$

$y=19$

When x= 0

$y+5\left(0\right)=9$

$y+5\cdot \:0=9$

$y+0=9$

$y=9$

When x= 4

$y+5\left(4\right)=9$

$y+5\cdot \:4=9$

$y+20=9$

$y+20-20=9-20$

$y=-11$