Question

X:(90-2X)=5:4

Answer 1

问：X:(90-2X)=5:4

答：To solve the equation (90-2X) = 5/4, we can first simplify it by multiplying both sides by 4 to get rid of the fraction:4(90-2X) = 5Expanding the equation:360 - 8X = 5Next, we can isolate the X term by subtracting 360 from both sides:-8X = 5 - 360Simplifying:-8X = -355Finally, divide both sides by -8 to solve for X:X = -355 / -8Simplifying the fraction:X = 44.375Therefore, the solution to the equation is X = 44.375.

答：要解方程 (90-2X) = 5/4，我们可以先将其简化，通过乘以4来消除分数：4(90-2X) = 5展开方程：360 - 8X = 5接下来，我们可以通过从两边减去360来隔离X项：-8X = 5 - 360简化：-8X = -355最后，将两边都除以-8来求解X：X = -355 / -8简化分数：X = 44.375因此，方程的解为 X = 44.375。

问：X：（90-2X）=5:4

问：不是90-2X=5:4

答：4x等于5（90-2X）=450–10x14x=450X=450/14