3*(10 - x)*(10 + x) + 3*x^2 is one possible anwer.
10
33,871,648 = (3 x 10^9) + (3 x 10^8) + (0 x 10^7) + (8 x 10^6) + (7 x 10^5) + (1 x 10^4) + (0 x 10^3) + (6 x 10^2) + (4 x 10^1) + (8 x 10^0)
The problem |x|-5=3 is an absolute value equation. to find what x equals you have to get x by itself by adding 5 to each side. |x|-5=3 +5 +5 |x|=8 |x| is equal to 8, but is also equal to -8 because the absolute value bars mean that anything inside them is turned positive. Check your answer by substituting 8 and -8 in for x. |8|-5=3? |-8|-5=3?
It is an equation in one variable.
There is no equation in that statement. There is only this 3 x 10^8. There has to be an equals sign, = , for there to be an equation. Please restate the term as an equality. Of course there is an equation: Answer = [3 times 10 to the eighth] to the fifth power
4(x- 8) + 10 = -10
10
x + 10 = 18 18 - 10 = x 18 -10 = 8 x = 8
x*3=8 Multiply x by 3 to get 3x. 3x=8 Divide each term in the equation by 3. (3x)/(3)=(8)/(3) Simplify the left-hand side of the equation by canceling the common terms. x=(8)/(3)
2
x = -6
Equation: 8x + 8 = 32x. x = 1/3Can start by dividing both sides by 8: x + 1 = 4x.Subtract x from both sides: 1 = 3x.divide both sides by 3: 1/3 = x, or x = 1/3.Check answer in original equation: 8/3 + 8 = 32/3. Both sides equal 10 2/3, so our answer is correct.
x=3 For the equation x + 8 = 11, only one step is required to solve for x Subtract 8 from both sides of the equation to get the x term by itself. 11-8=3, so x=3
X+3=8
x = 1, y = 9. Here's one way to solve:Since y = x + 8, from the second equation, substitute (x + 8) for y in the first equation: x + (x+8) = 10 --> 2x + 8 = 10, and 2x = 2, so x = 1.Now y = x + 8, so substitute x=1 and get y = 1 + 8 = 9. Check your answer in the first equation: [x+y=10]: 1+9=10, which checks out.
Multiply the first equation by -3