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3. Find the solution to each equation mentally. a. 30+ a = 40 b. 500+ b = 200 C. -1+c= -2 d. d +3.567=0
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3. Find the solution to each equation mentally.

a. 30+ a = 40
b. 500+ b = 200
C. -1+c= -2
d. d +3.567=0

User Nickmilon
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2 votes

Answer:


a. \: 30 + a = 40 \\ a = 40 - 30 \\ a = 10 \\ b. \: 500 + b = 200 \\ b = 200 - 500 \\ b = - 300 \\ c. \: - 1 + c = - 2 \\ c = - 2 + 1 \\ c = - 1 \\ d. \: d +3.567=0 \\ d = 0 - 3.567 \\ d = - 3.567

hope it helps:)

User Zgcharley
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