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Mathematics
Brayan
24 June, 14:34
Solve for the unknown variable: - 8m - 9 = 39
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Adelaide
24 June, 17:19
0
m = -6
Step-by-step explanation:
To solve for the unknown variable, m, we have to get m by itself. Perform the opposite of what is being done to the equation.
-8m-9=39
9 is being subtracted from-8m, so add 9 to both sides. Addition is the opposite of subtraction.
-8m-9+9=39+9
-8m=39+9
-8m=48
-8 and m are being multiplied. Divide both sides by - 8, because division is the opposite of multiplication
-8m/-8=48/-8
m=48/-8
m = - 6
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