Step 1: Write out the equations and label them
Step 2: From equation (1) we make isolate x to get equation (4)
Step 3: Substitute equation (4) into equation (3)
Step 4: Add equation (5) to equation (2)
Step 5: Substitute the value o f y = 38/5 into equation (5)
Step 6: Substitute the value of y = 38/5 into equation (1)
Hence, the solution is given by
x = -8.8, y = 7.6, and z = -10.8
d