WebTake the 2nd equation and add 3x to both sides to isolate "y". y = 3x+3 Now, substitute this value of "y" into the first equation. 3(3x+6) + 2x = 7 You can now solve for "x". Once you have the value of "x", use it to calculate the value of "y". Hope this helps. Comment back if you have questions. Webinverse a−1 is given by a−1 = b (MOD m). Ex 3. 3 has inverse 7 modulo 10 since 3·7 = 21 shows that 3·7 ≡ 1(mod 10) since 3·7−1 = 21−1 = 2·10. 5 does not have an inverse modulo 10. If 5 · b ≡ 1(mod 10) then this means that 5 · b − 1 = 10 · k for some k. In other words 5·b = 10·k −1 which is impossible.
The Substitution Method - NROC
WebSolve Using the Quadratic Formula b^2-4b-14=-2. b2 − 4b − 14 = −2 b 2 - 4 b - 14 = - 2. Move all terms to the left side of the equation and simplify. Tap for more steps... b2 − 4b−12 = 0 b 2 - 4 b - 12 = 0. Use the quadratic formula to find the solutions. −b±√b2 −4(ac) 2a - b ± b 2 - 4 ( a c) 2 a. Substitute the values a = 1 a ... WebTo solve the equation for different variables step-by-step clear any fractions by multiplying both sides of the equation by the LCM of the denominators. Get all the terms with the wanted variable on one side of the equation and all the other terms on the other side. Isolate the variable, and solve for the variable by undoing any arithmetic ... integrity insurance elk river mn
1) What is the solution to the system of equations? - Brainly
WebStep 1: Enter the expression you want to evaluate. The Math Calculator will evaluate your problem down to a final solution. You can also add, subtraction, multiply, and divide and complete any arithmetic you need. Step 2: Click the … WebThe steps we take to determine whether a number is a solution to an equation are the same whether the solution is a whole number or an integer. example Determine whether each of the following is a solution of 2x−5 = −13: 2 x − 5 = − 13: 1. x =4 x = 4 2. x =−4 x = − 4 3. x= −9 x = − 9 Solution WebWhen we use the equals sign (=), we indicate that two expressions are equal in value. This is called an equation. For example, x + 5 = 23 is an equation. By choosing certain procedures, you can go step by step from a given equation to the equation x = some number. The number is the solution to the equation. joe thomas linebacker nfl