12.The root of the equation 5x-8=7 is
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Verify by substitution that : the root of 5x-8=7 is 3.
Answered by
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Answer:
the root of
5x-8=7 is 3.
Step-by-step explanation:
Add 88 to both sides.
5x=7+8
5x=7+8
2 Simplify 7+87+8 to 1515.
5x=15
5x=15
3 Divide both sides by 55.
x=\frac{15}{5}
x=
5
15
4 Simplify \frac{15}{5}
5
15
to 33.
x=3
x=3
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