What is 83- 12.76 pls help and I NEED an explanation

first start with 83 -12

83-12 = 71

Now take 0.76 away from 71

71 - 0.76 = 70.24

Step-by-step explanation:

Factor out the common term 333(x-y)=53(x−y)=52 divide both sides by 33x-y=\frac{5}{3}x−y=​3​​5​​ 3 add yy to both sidesx=\frac{5}{3}+yx=​3​​5​​ +y1 factor out the common term 222(x+4y)=112(x+4y)=112 divide both sides by 22x+4y=\frac{11}{2}x+4y=​2​​11​​ 3 subtract 4y4y from both sidesx=\frac{11}{2}-4yx=​2​​11​​ −4y