2006-06-13 15:33:31 · 26 answers · asked by joe6042@sbcglobal.net 1 in Education & Reference ➔ Homework Help
3x-5(3x-7)=2(x+9)+45
3x-15x+35=2x+18+45 (distributive law)
3x-15x-2x=18+45-35(put variable on left side, numbers on right side)
-14x=28 (collect like terms)
x=-2 (divide both sides by -14)
hope that helped :)
2006-06-13 16:11:18 · answer #1 · answered by asrael_espoir 3 · 2⤊ 0⤋
x=2
2006-06-13 15:41:02 · answer #2 · answered by azn_earmuffs 1 · 0⤊ 0⤋
Remember... Please Excuse My Dear Aunt Sally? Acronym for order of operations... Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction.
3x-5(3x-7)=2(x+9)+45 . Parenthesis
3x-15x+35=2x+18+45 . Multiplication
-12x+35 = 2x+63 . Addition and Subtraction
-14x +35 = 63 . Addition and Subtraction
-14x = 28 . Change into simplest terms
x = -2 . Solution
2006-06-13 16:01:11 · answer #3 · answered by ŧťŠ4 · 0⤊ 0⤋
i bet you did this already but here's the equation
3x - 5(3x - 7) = 2(x+9) + 45
3x - 15x + 35 = 2x + 18 + 45
-12x + 35 = 2x + 63
-10x + 35 = 63
-10x = 28
x = -2.8
2006-06-13 15:59:37 · answer #4 · answered by Anonymous · 0⤊ 0⤋
3x - 5 ( 3x - 7 ) = 2 ( x + 9 ) + 45
3x - 15x + 35 = 2x + 18 + 45
-12x + 35 = 2x + 63
-14x = 28
x = -2
2006-06-13 15:40:58 · answer #5 · answered by Anonymous · 0⤊ 0⤋
3x - 15x + 35 = 2x + 18 + 45
(3-15-2)x= 18+45-35
x=-2
2006-06-13 15:40:00 · answer #6 · answered by burntpotato 2 · 0⤊ 0⤋
x = -2
2006-06-13 15:41:17 · answer #7 · answered by Lorien1973 1 · 0⤊ 0⤋
x= -2
2006-06-13 16:20:04 · answer #8 · answered by kumail86 1 · 0⤊ 0⤋
x=-2
2006-06-13 15:43:26 · answer #9 · answered by jhsingson 1 · 0⤊ 0⤋
x= -2
2006-06-13 15:40:31 · answer #10 · answered by atc200x_kid 1 · 0⤊ 0⤋