Solved If 2a 3b And 4a B 21 Then B A 1 B 3 C 4 D 7 Algebra Divide both sides of the equation by the coefficient of variable: \begin {equation}\begin {cases}a = 3 b \div 2\\4 a b = 21\end {cases}\end {equation} {a = 3b÷2 4a b =21. \begin {equation}\begin {cases}a = 4.5\\b = 3\end {cases}\end {equation} {a = 4.5 b =3. answer:. We are given two equations: 2a=3b and 4a b=21. we need to find the value of b. we can solve this by substitution method. the value of b is 3. 2. if 2a=3b and 4a b=21, then b= (a) 1 (b) 3 (c) 4 (d) 7. exercise 2: (10 pts) consider the following system of linear equations: ⎩⎨⎧x y−z=12x 3y mz=3x my 3z=−3 a) let m=2 : write the system with m=2.
Solved If Possible Find A B A B 3a And 3a 4b If Chegg Explanation: rearrange unknown terms to the left side of the equation: \left\ {\begin {array} {l} 2a 3b=0\\ 4a b=21\end {array}\right. {2a−3b=04a−b=21 multiply both sides of the equation by a coefficient: \left\ {\begin {array} {l} 2 (2a 3b) 0\times 22\\ 4a b 21\end {array}\right. {2(2a−3b)−0×224a−b−21 apply multiplicative. To solve the problem, we need to find the value of b from the given equations: let's follow a step by step approach: step 1: express a in terms of b. from equation 1, we have: 2a = 3b. to express a in terms of b, divide both sides by 2: a = 23b. step 2: substitute a in equation 2. now substitute a = 23b into equation 2: 4a b = 21. To find b, we manipulated the equations 2a = 3b and 4a b = 21. by substituting and simplifying, we determined that b = 3. Free pre algebra, algebra, trigonometry, calculus, geometry, statistics and chemistry calculators step by step.
Solved Find A B 4a 2b A ï And A B Simplify Your Chegg To find b, we manipulated the equations 2a = 3b and 4a b = 21. by substituting and simplifying, we determined that b = 3. Free pre algebra, algebra, trigonometry, calculus, geometry, statistics and chemistry calculators step by step. Free math problem solver answers your algebra homework questions with step by step explanations. If 2a=3b and 4a b=21, then b= a 1 b 3 c 4 d 7 get the answers you need, now!. The equation solver allows you to enter your problem and solve the equation to see the result. solve in one variable or many. Click here 👆 to get an answer to your question ️ if 2a=3b and 4a b=21, then b=.