2007-11-17 04:24:46 · 13 answers · asked by diva 1 in Science & Mathematics ➔ Mathematics
5 is looking nice
2007-11-17 04:27:20 · answer #1 · answered by Sir Oprah 3 · 0⤊ 0⤋
If it's 9 times 'x', you separate the 'x' variables to the left, so that it's 9x-3x=30. You simplify the result so you have 6x=30; and the final step would be to divide by 6 for the value of 'x'. I agree on x=5 too.
2007-11-17 12:38:45 · answer #2 · answered by gabe 3 · 0⤊ 0⤋
Simplifying
9(x) = 3x + 30
Reorder the terms:
9x = 30 + 3x
Solving
9x = 30 + 3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x' to each side of the equation.
9x + -3x = 30 + 3x + -3x
Combine like terms: 9x + -3x = 6x
6x = 30 + 3x + -3x
Combine like terms: 3x + -3x = 0
6x = 30 + 0
6x = 30
Divide each side by '6'.
x = 5
Simplifying
x = 5
2007-11-17 14:32:27 · answer #3 · answered by Anonymous · 0⤊ 0⤋
9x = 3x+30 - 3x
9x - 3x = 30
6x = 30
6x/6=30/6
x=5
hope that helped
2007-11-17 13:02:45 · answer #4 · answered by Anonymous · 0⤊ 0⤋
9x = 3x + 30
9x - 3x = 30
6x = 30
x = 30/6
x = 5
2007-11-17 12:27:40 · answer #5 · answered by Jose M 1 · 0⤊ 0⤋
9(x)=3x+30
9x=3x+30
-3x -3x
6x=30
--- ----
6 6
x=5
2007-11-17 13:13:07 · answer #6 · answered by Anonymous · 0⤊ 0⤋
9x = 30 + 3x
9x - 3x = 30
6x = 30
x = 30/6
x = 5
check:
9(5) = 3(5) + 30
45 = 15 + 30
45 = 45
2007-11-17 12:33:23 · answer #7 · answered by Anonymous · 0⤊ 0⤋
9x = 3x + 30
9x - 3x = 30
6x = 30
x = 30/6
x = 5
Damn, this is the type of question I cheat at my seatmate.hahaha
2007-11-17 12:50:41 · answer #8 · answered by ryukansentsumuji01 2 · 0⤊ 0⤋
9(x)=3x+30
-minus three x from both sides
9x-3x=30
-nine minus three is six
6x=30
-divide both sides by 6
x=30/6
x=5
2007-11-17 12:31:31 · answer #9 · answered by Anonymous · 0⤊ 0⤋
9(x)=3x+30
9x-3x=30
6x=30
x=30/6
x=5
2007-11-17 12:58:50 · answer #10 · answered by Kelly R 2 · 0⤊ 0⤋
first you would subtract 3x from each side, which gives you 6x=30 then you divide 6 from each side which gives you x=5 so 5 is your answer
2007-11-17 12:58:15 · answer #11 · answered by shellyc93 2 · 0⤊ 0⤋