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Solve for x. Justify each step. Given: 4x-9=99

User Spade
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1 Answer

4 votes

Answer:

4x-9=99

1. Move -9 to the side with 99 and change the sign

4x=99+9

2. Sum

4x=108

3. Divide 4x by 4 to leave the X alone. Do the same on the other side.

4x/4=108/4

4. Complete the division

x=27

Verification:

4(27)-9=99

108-9=99

99=99 (TRUE)

User Bmscomp
by
8.1k points

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