henna7115
henna7115
23-02-2015
Mathematics
contestada
solve: 4x+3 = 2x + 9
Respuesta :
Аноним
Аноним
23-02-2015
4x+3 = 2x + 9
4x-2x=9-3
2x=6
x=6/2
x=3
Answer Link
heyDB
heyDB
23-02-2015
Move 2x to the left hand side of the equation by subtracting 2x from both sides.
4x+3−2x=9
Add
4x
and
−2x
to get
2x
.
x+3=9
Since 3
does not contain the
variable
to solve for, move it to the right-hand side of the
equation
by subtracting
3
from both sides.
2x=−3+9
Add
−3
and
9
to get
6.
2x=6
Divide
each
term
in the
equation
by
2.
x=3
x is equal to 3
Answer Link
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