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Grade-4
Solve for the Variable - One-Step Addition and Subtraction Equation
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Solve the equation for variable T
39 - T = 30
Explanation
39 - T = 30
Add T on both sides we get:
39 - T + T = 30 + T
39 = 30 + T
Now, subtract 30 from both sides
39 – 30 = 30 – 30 + T
9 = T
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