To solve using substitution, you need to sub the first equation into the second one.
So, the new equation would be:
-4 + 5(3x - 14) = -37
Then, you just distribute the 5 and solve. Your answer should be x = 7.4.
To find the y, sub the newly found x into one of the original equations. For example, the first.
y = 3(7.4) - 14
y = 8.2
Therefore, x = 7.4 and y = 8.2.
