x=4(90-x)-5
2007-10-08 15:18:34 · 9 answers · asked by Lucia I 1 in Education & Reference ➔ Homework Help
x = 360 - 4x - 5 (Multiply the term inside the brackets by 4)
5x = 355 (Add 4x to each side)
x = 71 (Divide by 5)
2007-10-08 15:22:00 · answer #1 · answered by Anonymous · 2⤊ 0⤋
Do the same things to both sides of the equation.
Start by simplifying by multiplying 4 times (90 - x) = 360 - 4x, so the equation is x = 360 - 4x - 5, simplify to x = 355 - 4x
Subtract x from both sides to give 0 = 355 -5x
Add 5x to each side, to give 5x = 355.
Divide both sides by 5, to give x = 71
2007-10-08 22:23:57 · answer #2 · answered by Howard H 7 · 1⤊ 0⤋
4x90=360 360-4x-5 5x=355 x=71
2007-10-08 22:22:10 · answer #3 · answered by Thomas M 3 · 0⤊ 0⤋
x = [(4*90) - (4*x)] -5 ~>distribute
x = 360 - 4x -5
4x + x = 355
355/5 is??
x= 71.
2007-10-08 22:23:05 · answer #4 · answered by julosh9999 2 · 1⤊ 0⤋
first distribute the 4.
x=360-4x-5
then simplify.
x=355-4x
subtract.
5x=355
divide.
x=71
2007-10-08 22:25:12 · answer #5 · answered by Anonymous · 0⤊ 0⤋
x=360-4x-5
5x=355
x=71
2007-10-08 22:22:07 · answer #6 · answered by Tiko 3 · 0⤊ 0⤋
370-4x-5
2007-10-08 22:21:53 · answer #7 · answered by tony 2 · 0⤊ 0⤋
I guess I'm not clear on it either at this point
2007-10-08 22:21:39 · answer #8 · answered by Anonymous · 0⤊ 0⤋
ahahaha ive never known how to do that.
2007-10-08 22:21:48 · answer #9 · answered by Kelsey Koala 4 · 0⤊ 0⤋