1. If the value of the dependent variable is 20, find the value of the independent variable in the equation y = 5x + 10?

2. If the value of the independent variable is 30, find the value of the dependent variable in the equation y = 5x + 10?

X = independent variable

Y = dependent variable

1. y = 5x + 10

20 = 5x + 10 plug in

-10 - 10 subtract like terms since 10 is positive

10/5 = 5x/5 divide by 5, trying to get x by itself

2 = x 5 divided by 5 cancels out and 10 divided by 5 is 2

y = 5 (30) + 10

y = 150 + 10

y = 160