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Grade-4
Solve for the Variable - One-Step Subtraction Equation
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Solve the equation for variable D
30 - D = 8
Explanation
30 - D = 8
Add D on both sides we get:
30 - D + D = 8 + D
30 = 8 + D
Now, subtract 8 from both sides
30 – 8 = 8 – 8 + D
22 = D
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