2006-09-20 18:22:39 · 5 answers · asked by leo_love_0731 1 in Science & Mathematics ➔ Mathematics
the star is degrees. its dealin with angles in geometry
2006-09-20 18:38:31 · update #1
(7x + 2)* = (3x + 8)
→(7x + 2)° = (3x + 8)°
7x° + 2° = 3x° + 8°
7x° - 3x° = 8° - 2°
4x° = 6°
x° = 6°/4
x° = 1∙5°
2006-09-20 20:40:31 · answer #1 · answered by Brenmore 5 · 1⤊ 0⤋
(7x + 2) = (3x + 8)
7x + 2 = 3x + 8
7x + 2 - 3x = 3x + 8 - 3x
4x + 2 = 8
4x + 2 - 2 = 8 - 2
4x = 6
4x/4 = 6/4
x = 6/4
x = 3/2
x = 1 1/2
x = 1.5°
2006-09-21 10:25:02 · answer #2 · answered by SAMUEL D 7 · 1⤊ 0⤋
7x+2=3x+8
To start subtract the 3x from both sides of the equation
7x+2 = 3x+8
-3x -3x
After that what is left of your equation is 4x+2=8
Now subtract the 2 from both sides of the equation:
4x+2 = 8
-2 -2
All you are left with now is:
4x = 6
now divide both sides by 4 to get:
x = 6/4
6/4 in decimal form is 1.5 so
x = 1.5
2006-09-21 01:41:08 · answer #3 · answered by paulditoto 1 · 0⤊ 0⤋
What does star mean as a power?
1)
I think it must be square.
49x^2+4+14x-3x-8=0
49x^2+11x-4=0
a=49 b=11 c=-4 Use quadratic formula
x1,2=(-11+ or - sqrt(905))/98
2)
7x+2=3x+8
7x-3x=8-2
4x=6
x=6/4
x=3/2
2006-09-21 01:28:48 · answer #4 · answered by iyiogrenci 6 · 0⤊ 0⤋
x = 1.5
When you open the brackets, the power become individual.
(7x) + (2) = (3x) + 8
Solve for x.
2006-09-21 01:36:18 · answer #5 · answered by Fahad A 1 · 0⤊ 0⤋