Complete the solution of the equation. Find the
value of y when x equals -9.
-7x + 8y = 39
2 answers:
Answer:
-7x + 8y = 39
when x = -9
-7(-9) +8y = 39
63 + 8y = 39
8y = 39-63
8y = -24
Divide both sides by 8
y = - 3
Hope this helps.
Answer:
y = -3
Step-by-step explanation:
=> -7x+8y = 39
<u><em>Putting x = -9</em></u>
=> -7(-9)+8y = 39
=> 63+8y = 39
<em>Subtracting 63 to both sides </em>
=> 8y = 39-63
=> 8y = -24
<em>Dividing both sides by 8</em>
=> y = -3
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