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OpenStudy (anonymous):
Explain how you would solve the equation -7 + x = 12 using the properties of equality.
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OpenStudy (goten77):
|dw:1358452200974:dw| by adding 7 to both sides we isolate x by itself since adding 7 will cancel out with the -7 the the left side becomes just x while the right side is 12 + 7 which is 19
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