y = 34 - 17 y = 17 Therefore, the value of y is 17 Example 3: Solve the value of y for given y2- 121 = 0 Solution: y2- 121 = 0 y2= 121 y = +11, -11 Therefore, the value of y is -11 and 11 Similarly, you can use the calculator to find the value of y for: ...
结果1 题目1. (i) Without using a calculator, solve, for x and y, the simultaneous equations64^x*4^y=1 3^y*81^(1/3)=81[5](ii) Sket h+heparabolay^2=5x .[2] 相关知识点: 试题来源: 解析 (i)∴y=60ry=-2(ii) 反馈 收藏 ...
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Solve for x in math means finding the value of x that would make the equation true. How do you get X by itself? To get a variable by itself a combination of algebraic techniques is requiered. The distributive property, the addition and subtraction properties of equality to move all the te...
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2 Without using a calculator, solve, for r and y, the simultaneous equations.[4] 8^5÷2^1=64 .3^4*(1/9)^(1-1)=81 3 ×=81. 相关知识点: 试题来源: 解析 8^x÷2^y=64 = 2^(3x)÷2^y=2^6 ⇒2^(3x-y)=2^6 =3x-y=6-(1) 3^(4x)*(1/9)^(Y-1)=8^1 3 3^(...
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