Show all steps and give your answer correct to 3 decimal places.
Solve for x in the equation
2(x+1) = 3
2007-03-30 08:36:33 · 11 answers · asked by jrnitro123 1 in Science & Mathematics ➔ Mathematics
2(x + 1) = 3
2x + 2*1 = 3
2x + 2 = 3
2x + 2 - 2 = 3 - 2
2x = 1
2x / 2 = 1/2
x = 1/2 = 0.500
2007-03-30 08:42:46 · answer #1 · answered by Mathematica 7 · 1⤊ 0⤋
Distribute the 2 accross so that 2(x+1)=3 becomes: 2x+2=3
To cancel out the 2 on the left side of your equation subtract 2 from both sides so that 2x+2=3 becomes 2x=3-2
2x=3-2 can be simplified as 2x=1
To get the variable (x) by itself you must divide both sides of the equation by 2 which means x=1/2
x=1/2 can be expressed in decimal form by x=.5
Final answer by direction given: x=.5
2007-03-30 08:47:16 · answer #2 · answered by Goosutoraitaa 2 · 0⤊ 0⤋
2(x+1) = 3
2x + 2= 3 distribute the 2
2x=1 subtract 2 from 3
x=1/2 or .500 divided by 2
2007-03-30 08:46:19 · answer #3 · answered by Howdy! 5 · 1⤊ 0⤋
divide both sides by 2
2/2(x+1)= 3/2
x+1 = 3/2
subtract 1 from both sides
x+1 - 1 = 3/2 -2 = 3/2 - 2/2
x = 1/2 = .500
2007-03-30 08:42:05 · answer #4 · answered by bignose68 4 · 1⤊ 0⤋
You mulitply 2 to everything in the paranthesis to get
2x + 2 =3
Minus 2 on both sides 2x + 2-2= 3-2
You get 2x = 1
Divide both sides by 2 to get x alone
x = 1/2
So your answer is 1/2 or 0.5
2007-03-30 12:08:20 · answer #5 · answered by Anonymous · 0⤊ 0⤋
2(x+1)=3
2x+2=3
2x=3-2
2x/2=1/2
x=1/2
x=0.500
/ is a fraction bar b.t.w.
2007-03-30 08:54:55 · answer #6 · answered by al 1 · 0⤊ 0⤋
2(x+1) = 3
2x+2 = 3 <---Distributive Property
2x=1 <---Subtract 2 from both sides
x=0.500 <---Divide 2 on both sides.
2007-03-30 08:46:59 · answer #7 · answered by Anonymous · 0⤊ 1⤋
2x + 2 = 3
2x = 1
x = 1/2 = 0.5
2007-03-30 08:40:48 · answer #8 · answered by Como 7 · 1⤊ 0⤋
2(x+1)=3
x+1=3/2
x=3/2-1
x-1/2
2007-03-30 09:01:58 · answer #9 · answered by saramenlove 1 · 0⤊ 0⤋
Southern queen's answer is wrong!!
2007-03-30 08:55:01 · answer #10 · answered by mysticleah 3 · 0⤊ 0⤋