ANSWER
x = 2.9, y = -1.6 and x = -1.7, y = 6.7
Step-by-step explanation
We are given two equations:
From the first equation, we have:
y = 3.6 - 1.8x
Put that in the second, we have:
Put each of those values of x in the first equation:
y = 3.6 - 1.8(2.9) and y = 3.6 - 1.8(-1.7)
y = 3.6 - 5.22 and y = 3.6 + 3.06
y = -1.6 and y = 6.7 (approximately to the nearest tenth)
Therefore, the solutions are:
x = 2.9, -1.6 and x = -1.7, y = 6.7