Is there any difference between "simplifying ratio and seeking ratio" and "simplifying ratio and seeking ratio"? Is "simplifying ratio and finding ratio" done with one formula? Is "simplifying ratio and finding ratio" done with two formulas

Is there any difference between "simplifying ratio and seeking ratio" and "simplifying ratio and seeking ratio"? Is "simplifying ratio and finding ratio" done with one formula? Is "simplifying ratio and finding ratio" done with two formulas

Yes, we can simplify the ratio and calculate the ratio in one step, but that won't work

How to solve equation 7.8a-8-1.5a = 48.7

6.3a=56.7
a=9

How to solve the equation 8A ^ 4 - 5A ^ 2 = - 0.5?

Double two on both sides
16a^4-10a²+1=0
(8a²-1)(2a²-1)=0
a²=1/8,a²=1/2
a=-√2/4,a=√2/4,a=-√2/2,a=√2/2