The answer is 327.
100 + 100 + 100 = 300
1 x 7 = 7
10 x 2 = 20
Answer:

Step-by-step explanation:

Move 2x to left hand side and change it's sign
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Collect like terms
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Divide both sides of the equation by 4
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Calculate
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Answer:
4x−3y=−10
Step-by-step explanation: