8x + 26x - 7 = 34x - 7 = (√34x)2 - (√7)2 = √34x - √7)(√34x + √7)
7y+ 8x + 4= 20 + 8x- 8x - 8x7y + 4 = 20- 4 - 47y=16/7 /7y= 2.28the /7 means divide by 7 :)
8x + 7
8x+7=55 8x=55-7 8x=48 x=48/8 x=6
12
8x + 26x - 7 = 34x - 7 = (√34x)2 - (√7)2 = √34x - √7)(√34x + √7)
You said that 42x - 3 + 7 = 8x + 5 .Combine the like terms on the left side (the -3 and the +7):42x + 4 = 8x + 5Subtract 4 from each side:42x = 8x + 1Subtract 8x from each side:34x = 1Divide each side by 34:x = 1/34The solution set is: {34}
It is 7+8x simplified
7y+ 8x + 4= 20 + 8x- 8x - 8x7y + 4 = 20- 4 - 47y=16/7 /7y= 2.28the /7 means divide by 7 :)
8x-7+4 = 8x-3 simplified
8x-7 plus 2x equals 6 plus 5x plus 2?
7+8x-5 = 8x+7-5x Subtract 7 from both sides: 8x-5 = 8x-5x Subtract 8x from both sides: -5 = -5x Divide both sides by -5: x = 1 So the equation implies x = 1
8x + 7
Since there is only an expression - not an equation - you can simplify it but there is nothing to work out or solve. -7 + 8x + 40 + 90 = 8x + 123
8x+7=55 8x=55-7 8x=48 x=48/8 x=6
Change all signs, from -7 + 8x + 41 = 90 to +7 - 8x - 41 = -90
8x-4 = -7+5x 8x-5x = -7+4 3x = -3 x = -1