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G8_Mod4_L2-3_JW
| Question | Answer |
|---|---|
| Given that 2𝑥 + 7 = 27 and 3𝑥 + 1 = 28, does 2𝑥 + 7 = 3𝑥 + 1? Explain. | No |
| Is −5 a solution to the equation 6𝑥 + 5 = 5𝑥 + 8 + 2𝑥? Explain. | If we replace ࢞ with the number െ, then the left side of the equation is ڄ) െ) + = െ + = െ, |
| Does 𝑥 = 1.6 satisfy the equation 6 − 4𝑥 = − 𝑥 4? Explain. | If we replace ࢞ with the number . , then the left side of the equation is െڄ = .െ. = െ. , and the right side of the equation is െ . = െ. . Since െ. = െ. , then ࢞ . = is a solution of the equation െ ࢞ = െ࢞ |
| Does 𝑥 = 5 satisfy the equation above? Explain. | If we replace ࢞ with the number , then the left side of the equation is ( + ) = () = ૡ, and the right side of the equation is + ڄ = + ࢞ = + = ૡ. Since ૡ = ૡ, then ࢞ = is a solution of the equation (࢞ = ( + ࢞. |
| Is 𝑥 = −8 a solution of the equation above? Explain. | and the right side of the equation is + (െૡ (ڄ = + ࢞ = െ + = െ. Since െ = െ, then ࢞ = െૡ is a solution of the equation (࢞ = ( + ࢞. + |
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