Wangari plants trees at a constant rate of 12 trees every 333 hours. Write an equation that relates p, the number of trees Wangari plants, and h, the time she spends planting them in hours.

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?