WebAnd we have a system of equations here. The first equation is 2y is equal to x plus 7. And the second equation here is x is equal to y minus 4. So what we want to do, when they say substitution, what we want to do is substitute one of the variables with an expression so that we have an equation and only one variable. WebApr 7, 2024 · Engage NY Eureka Math 8th Grade Module 4 Lesson 28 Answer Key Eureka Math Grade 8 Module 4 Lesson 28 Example Answer Key. Example 1. Use what you …
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WebSimplify square root of 49x^8. √49x8 49 x 8. Rewrite 49x8 49 x 8 as (7x4)2 ( 7 x 4) 2. √(7x4)2 ( 7 x 4) 2. Pull terms out from under the radical, assuming positive real numbers. 7x4 7 x 4. WebOct 1, 2024 · Algebraic Expressions and Identities Class 8 MCQs Questions with Answers. Question 1. The expression x + 3 is in. (a) one variable. (b) two variables. (c) no variable. (d) none of these. Answer. Question 2. disability discrimination in the workplace uk
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WebYou can multiply both equations by a number to get one of the x or y absolute values the same, multiply the top equation by 2, to get 8x-6y=16, and the second equation by -3 to get -15x+6y=33, then add the equations to get -7x=49, so x is equal to -7. Plug in -7 for x to … WebSolve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. WebThis problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer. Rewrite one eighth times x cubed … foto de golf tsi