The equation that is equivalent to x + 8 = 21 is (x + 8) × 4 = 21 × 4
Given the equation
To get a similar expression we will either subtract, multiply, divide or add the same constant to both sides of the equation
Multiplying both sides by 4 will give:
- x + 8 = 21
- (x + 8) * 4= 21 * 4
Hnce the equation that is equivalent to x + 8 = 21 is (x + 8) × 4 = 21 × 4
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