How to solve the x and y
WebThe reason both (-5,-8) and (5,8) are solutions to this equation is because they show up on the equation's line. Sal later says the (simplified) equation for the question is y=8x/5. To make this answer more clear, another equation, such as y=x-3, when x=-5, y is equal to -8, but when x equals 5, y equals 2. Hope this helps Comment ( 12 votes) WebMar 2, 2024 · 4 - y = 2. -y = -2. y = 2. You have solved the system of equations by multiplication. (x, y) = (2, 2) 6. Check your answer. To check your answer, just plug the two values you found back into the original equations to make sure that you have the right values. Plug (2, 2) in for (x, y) in the equation 3x + 2y = 10.
How to solve the x and y
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WebType a math problem Solve algebra trigonometry Get step-by-step explanations See how to solve problems and show your work—plus get definitions for mathematical concepts …
WebMar 2, 2024 · 4 - y = 2. -y = -2. y = 2. You have solved the system of equations by multiplication. (x, y) = (2, 2) 6. Check your answer. To check your answer, just plug the two … WebCalculate it! Examples: 1+2 , 1/3+1/4 , 2^3 * 2^2 (x+1) (x+2) (Simplify Example), 2x^2+2y @ x=5, y=3 (Evaluate Example) y=x^2+1 (Graph Example), 4x+2=2 (x+6) (Solve Example) …
WebA "root" is when y is zero: 2x+1 = 0. Subtract 1 from both sides: 2x = −1. Divide both sides by 2: x = −1/2. And that is the solution: x = −1/2. (You can also see this on the graph) We can also solve Quadratic Polynomials using basic algebra (read that page for an explanation). 2. By experience, or simply guesswork. WebIf you want to use Newton's method, it's a bit easier to take (natural) logarithms at this point. Solving $x^x = c$ for some number $c$ is then equivalent to solving $x \log x = d$ where …
WebTo cross multiply, multiply the denominator on the left by the numerator on the right. Then do the same for the denominator on the right and the numerator on the left. These new expressions will be equal to each other. For your example, it will look like: (x-9) (-2)= (x) (7) Distribute/multiply to get: -2x + 18 = 7x
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