Asked by jose

x-(12-x)=38 please explain
Answered by jose
d+3(d-4)=20 please explain
Answered by Ms. Sue
x-(12-x)=38

x + x - 12 = 38

Add 12 to both sides of the equation.

2x = 50

x = 25
Answered by Ms. Sue
d+3(d-4)=20

d + 3d - 12 = 20

4d = 32

d = ?

Answered by jose
on the 1st problem i don't understand how x is being added when the sign is subtraction
Answered by Ms. Sue
Two negatives make a positive.

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