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what is 7a - 5 = 2a - 15

Sagot :

megsss
7a-5 = 2a-15
 subtract 2a
5a-5=-15
add 5
5a=-10
Divide by 5
a=-2
7a-5=2a-15
Subtract 2a from both sides
5a-5=-15
Add 5 to both sides
5a=-10
Divide 5 on each side
a=-2

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