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Mathematics
Kayla Aguirre
27 April, 12:36
13 less than 8R leaves 43
+2
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Cayden Griffin
27 April, 14:21
0
r=7
Step-by-step explanation:
8r-13=43
Undo!
8r = 43+13
8r=56
r=56/8
r=7
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Lyons
27 April, 15:57
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8 (7) - 13=43
R = 7
Step-by-step explanation:
13 less than 8R leaves 43.
R is the unknown.
This expression can be in an equation.
8R-13 = 43
Carry over the like terms. Carry over the - 13 and make R the subject.
8R = 43+13
8R = 56
R = 56/8
R = 7
To check if the answer was correct, replace the unknown which is R with the value of what it is in brackets. Remember brackets mean to multiply.
8 (7) - 13 = 43
56-13 = 43
Therefore the answer is 7
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