Answer:
Explanation:
Solve an addition equation by subtraction
x= 17 - 9
Solve a subtraction equation by addition
x= 6 + 25
Solve a multiplacation equation by division
x= 48 / 8
Solve a division equation by multiplication
x = 7*4
Answer: Basically you do the opposite of each sign to isolate the variable on one side.
x + 9 = 17
-9 from each side
x = 8
x - 6 = 25
+ 6 to each side
x = 31
8x = 48
Divide each side by 8
x = 6
x/4 = 7
Multiply each side by 4
x = 28
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