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1 vote
Solve for x.
5x+4x-27=81
help me plz

User Mstruebing
by
5.2k points

2 Answers

5 votes

Answer:

x = 12

Explanation:

5x + 4x - 27 = 81

Combine the terms with x on the left side: 5x + 4x = 9x

9x - 27 = 81

Add 27 to both sides.

9x - 27 + 27 = 81 + 27

-27 + 27 = 0, and 81 + 27 = 108.

9x = 108

Divide both sides by 9.

9x/9 = 108/9

Do the operations on both sides. 9x/9 = x; 108/9 = 12

x = 12

User Edward Maxedon
by
5.2k points
6 votes

Answer:

x = 12

Explanation:

5x + 4x - 27 = 81

9x - 27 = 81

Add 27 to both sides

9x - 27 + 27 = 81 + 27

9x = 108

108/9 = 12

User Navin
by
5.8k points