Answer:
x=-1
Step-by-step explanation:
Let's solve your equation step-by-step.
5x−7=−12
Step 1: Add 7 to both sides.
5x−7+7=−12+7
5x=−5
Step 2: Divide both sides by 5.
5x/5=-5/5
x=−1
Answer:
6x^2+7x+4
Step-by-step explanation:
Explanation is in photo
Answer:
a=3
Step-by-step explanation:
5=4a-7
add 7 on both sides
5+7=4a(-7+7)
12=4a
Now divide 4 on both sides
a= 3
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