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2x-3=10x+21
2x-3-2x=10x+21-2x
-3=8x+21
-3-21=8x+21-21
-24=8x
-3=x
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∙ 13y ago
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What is -3x plus 10x - 5 plus 26?
-3x + 10x - 5 + 26 = 7x + 21
What type of lines are these x plus 2y equals 7 and 2x plus 4y equals 21?
They are parallel lines.
X 2-10x equals 21?
Assuming x(2-10x)=21 to be solved for x, distribute to -10x2+2x=21, or 10x2-2x+21=0. By the quadratic equation, we can determine there are no real solutions because the square root of -836 does not exist. In imaginary solutions, we can reduce to 1/10*(1 + sqrt(-209)) and 1/10*(1-sqrt(-209)) as solutions.
What is the solution of the following linear system 4x-3y equals 3 2x plus 5y equals 21?
x = 3, y = 3
What is 8 over negative 3 plus negative 7 over 2?
8/-3 + -7/2 = 8x-2/-3x-2 + -7x3/2x3= -16/6 + -21/6= -37/6
What is X2 plus 10x plus 21 equals?
x2 + 10x + 21 = (x + 3)(x + 7)
What is the answer for 2x - 3 equals 21 plus 10x?
2x-3 = 21+10x 2x-10x = 21+3 -8x = 24 x = -3
-150-9x equals 10x plus 21 what is x?
-171 = 19x so x = -9
X2 plus 10x plus 21 by x plus 3?
(x2+10x+21)/(x+3) = (x+7)
What is this quadratic equation written in standard form ofx2 - 10x plus 16 equals -5?
It is: x2-10x+21 = 0 and the value of x is 3 or 7 when solved
What is -3x plus 10x - 5 plus 26?
-3x + 10x - 5 + 26 = 7x + 21
X2 plus 10x plus 21 Enter each factor as a polynomial in descending order?
x2+10x+21 = (x+3)(x+7)
What is ten x plus fifteen equals seven x minus twenty-one simplified?
10x+15 = 7x-21 10x-7x = -21-15 3x = -36 x = -12 Which is the solution to the above equation when simplified.
X squared plus 10x plus 21 divided by x plus 3?
Factorising, we obtain, x2 + 10x + 21 = (x + 7)(x + 3). Thus, x2 + 10x + 21 / (x + 3) = x + 7. That's usually easier than dividing it out!
X2 plus 10x plus 21 equals 0?
The roots are -3 and -7. Easily by factoring and setting each factor equal to 0. The factors are x + 7 and x +3.
What is the factorization of x2 plus 10x plus 21?
x2 + 10x + 21 = (x + 3)(x + 7) You need to find 2 numbers which sum to 10 and whose product of 21. In this case 3 + 7 = 10 and 3 x 7 = 21.
Factorise x2 - 10x plus 21?
(x-7)(x-3)
