Why does -8x equal 8 mean x-1?

Anonymous

∙ 9y ago

Updated: 8/21/2019

Since you used no parentheses, I will assume that

x over 2 minus 1 equal 8 means

(x/2)-1=8

[It could also mean x/(2-1)=8: x/1=8: x=8]

(x/2)-1=8

add one to both sides

x/2=9

multiply both sides by two

x=18

Wiki User

∙ 9y ago

What else can I help you with?

X2 plus 8x-5 equals 0?

if you mean X²+8X-5=0: X1=-8/2 - Square root of ((8/2)²+5) X1=-4 - Square root of 21 X1 is about -8.58 X2=-8/2 + Square root of ((8/2)²+5) X2=-4 + Square root of 21 X2 is about 0.58

What is equivalent to 8x?

x*8 is equal to 8x.

What does x equal in 8 - 8x equals 8x plus 18?

8-8x=8x+18 Through simple algebra, this can be manipulated to solve for x: 8=16x+18 -10=16x -5/8=x

Is -4(-3x-8)-4x 8 equal to -8x 40?

Why does x equal to 8 and 0 in x2 equals 8x?

x2 = 8xx2- 8x = 0x(x - 8) = 0x = 0 ;x - 8 = 0x = 8

What does y equal in 8x 2y13?

(13-2y)/8

What does x equal in 8x plus 7 equals 55?

8x+7=55 8x=55-7 8x=48 x=48/8 x=6

How do you factorise 8x 16?

I assume you mean...., 8X + 16 8(X + 2) ======

What is the slope of 8x-5y1?

I assume you mean,8X - 5Y = 1- 5Y = - 8X + 1Y = (8/5)X - 5==========m(slope) = 8/5

What is x if 8x over 15 is equal to 80?

8x / 15 = 80Multiply each side by 15:8x = 1,200Divide each side by 8:x = 150

What does x equal in x2-8x equals 0?

x2-8x=0 ( add 8x to both sides) x2 =8x (divide by x) x=8 ( x2divided by x equals x)

What does 0.8x plus 3.4 equals 7.2 equal?

.8x+3.4=7.2 -3.4 -3.4 .8x = 3.8 *(1/.8) *(1/.8) x=4.75