2.1x - 2.58= 1.26 - 4.3x
and
2x + 6 < x + 9
2007-01-11 16:17:12 · 8 answers · asked by soul2true 1 in Science & Mathematics ➔ Mathematics
2.1x - 2.58 = 1.26 - 4.3x
add 2.58 to both sides and you get:
2.1x = 1.26 - 4.3x + 2.58
add 4.3x to both sides and you get:
2.1x + 4.3x = 1.26 + 2.58
simplify and you get:
6.4x = 3.84
divide both sides by 6.4 and you get:
x= 0.6
2x + 6 < x+9
sutract x from both sides and you get:
x + 6 < 9
subtract 6 from both sides and you get
x < 3
I'm glad I've solved your homework problems for you.
2007-01-11 16:29:03 · answer #1 · answered by G A 5 · 0⤊ 0⤋
2.1x + 4.3x = 1.26 + 2.58
6.4x = 3.84
on further simplification,
x = 0.6
2x + 6 < x + 9
subtract x on both sides, if any subtractions, the inequality symbol changes.
so,
x + 6 > 9
sub 6 on both sides and once again symbol changes
x < 3
2007-01-12 00:47:09 · answer #2 · answered by shreya i 2 · 0⤊ 0⤋
2.1x - 2.58= 1.26 - 4.3x
2.1x = 3.84 + 4.3x
6.4x = 3.84
x=0.6
2x + 6 < x + 9
2x < x + 3
x < 3
2007-01-12 23:28:27 · answer #3 · answered by music_gurl62091 2 · 0⤊ 0⤋
2.1x - 2.58= 1.26 - 4.3x
2.1x+4.3x= 1.26+2.58
6.4x=3.84
x=0.6
2X + 6 < X+9
2X-X < 9 - 6
X < 3
2007-01-12 02:04:38 · answer #4 · answered by Ms. M 3 · 0⤊ 0⤋
2.1x+4.3x=1.26+2.58
6.4x= 3.84
x=0.6
2x-x<9-6
x<3
2007-01-12 00:24:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Multiply the first by 100
210X -258 = 126 - 430X;
X = 3/5
2X + 6 < X+9;
2X-X < 9 - 6;
X < 3;
2007-01-12 00:22:40 · answer #6 · answered by Luis U 2 · 0⤊ 0⤋
1) x= .6
2) x<3
2007-01-12 00:25:22 · answer #7 · answered by Jasmine 1 · 0⤊ 0⤋
2x+6
x<3
2.1x-2.58=1.26-4.3x
2.1x+4.3x=1.26+2.58
6.4x=3.84
x=3.84/6.4
x=0.6
2007-01-12 00:24:53 · answer #8 · answered by HARITHA SREE 1 · 0⤊ 0⤋