A=7/9 b. Jika a-b=52, maka a+b=

[tex] \frac{7}{9} b - b = 52 \\ \frac{7b - 9b}{9} = 52 \\ - \frac{2}{9} b = 52 \\ b = - 234 \\ \\ a = \frac{7}{9} ( - 234) = - 182 \\ a + b \: = - 182 - 234 = - 416[/tex]
semoga membantu

A = 7/9 B

A-B = 52
7/9 B - B = 52
-2/9 B =52
B = -234

A-B = 52
A-(-234) = 52
A + 234 =52
A = -182

A+B
= -182 + (-234)
= -416