the answer is x is equal to 0.6
Problem 4:
4a = -15
4b = -75
4c = 125
Problem 5:
5a = -5
5b = 95
5c = -19 
Step-by-step explanation:
<em> See attached for my work. </em>
For problem 4, we substitute the different values given for x and solve.
For problem 5, we set the function equal to the given values and solve.
2 - 8y + 7y = 4
-1y = 2
y = -2
y = -2
Step-by-step explanation:
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<h2>Be Brainly</h2>