Graph the line using the slope and the y-intercept, or the points. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

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To solve a system of equations by elimination, write the system of equations in standard form: ax + by = c, and multiply one or both of the equations by a constant so that the coefficients of one of the variables are opposite. Then, add or subtract the …

5x+y=15 Geometric figure: Straight Line Slope = -10.000/2.000 = -5.000 x-intercept = 15/5 = 3 y-intercept = 15/1 = 15.00000 Rearrange: Rearrange the equation by subtracting what is to ... How do you solve \displaystyle{x}-{3}{y}=-{5} and \displaystyle-{x}+{y}={1} using matrices?

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f(x)=x^3 ; prove\:\tan^2(x)-\sin^2(x)=\tan^2(x)\sin^2(x) \frac{d}{dx}(\frac{3x+9}{2-x}) (\sin^2(\theta))' \sin(120) \lim _{x\to 0}(x\ln (x)) \int e^x\cos (x)dx \int_{0}^{\pi}\sin(x)dx

How do you solve the system of equations x−y = 15 and 3x+10y = −20 ? Put \displaystyle {x}= {15}+ {y} in the second equation.

x-y-(15)=0 . Step 1 : Equation of a Straight Line 1.1 Solve x-y-15 = 0 Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK). "y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

Use the binomial expansion theorem to find each term. The binomial theorem states (a+b)n = n ∑ k=0nCk⋅(an−kbk) (a + b) n = ∑ k = 0 n. n C k ⋅ (a n - k b k). 15 ∑ k=0 15! (15− k)!k! ⋅(x)15−k ⋅(y)k ∑ k = 0 15 15! (15 - k)! k! ⋅ (x) 15 - k ⋅ (y) k. Expand the summation.