6x2 + 10x = 2x*(3x + 5)
10x + 5 = 5(2x + 1)
2x(3x + 5)
-3x + 5 + 6 = -15 Multiply by -1 (swap all signs): 3x - 5 - 6 = 15 Combine like terms on left side: 3x - 11 = 15 Add 11 to both sides: 3x = 26 Divide both sides by 3: x = 26/3 or 8.66...
If the question is x + 4z - 5 - 3x when x = 2 and z = 3x, then First simplify the original statement x + 4z - 5 - 3x = 4z - 5 - 2x Secondly substitute in 3x for z 4z - 5 - 2x = 4*3x - 5 - 2x = 12x - 5 - 2x = 10x - 5 Lastly substitute 2 for the x 10x - 5 = 10*2 - 5 = 20 - 5 = 15 or x + 4z - 5 - 3x when x = 2 and z = 3x, so z = 3*2 = 6 x + 4z - 5 - 3x = 4z - 5 - 2x (replace the variables with the corresponding values) = 4*6 - 5 - 2*2 = 24 - 5 - 4 = 24 - 9 = 15
6x2 + 10x = 2x*(3x + 5)
6x2 + 10x = 2x(3x + 5)
2x(3x + 5)
10x + 5 = 5(2x + 1)
7x + 5 + 3x is [ 10x + 5 ].That's the same thing as [ 2 times (5x + 1) ] .
2x(3x + 5)
You're asking for the difference: (3x + 2) - (5 - 7x).(3x + 2) - (5 - 7x) =3x + 2 - 5 + 7x =10x - 3.It is (10x - 3) greater.
10x + 5 which is also equal to 5(2x + 1)
3x-2x-3x+6 = 5-10x+9x-5 Clean up both sides (the fives on the right cancel out) -2x + 6 = -1x add 2x to both sides 6 = x ■
The factors are [3x + 5 - 2*sqrt(10)] and [3x 5 + 2*sqrt(10)].
Add 3x to each side: 10x + 5 = 25Subtract 5 from each side: 10x = 20Divide each side by 10: x = 2
It is a linear equation in x. 10x = 7x + 15 3x = 15 x = 5