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solve: 4x+3 = 2x + 9

Sagot :

4x+3 = 2x + 9

4x-2x=9-3

2x=6

x=6/2

x=3
heyDB
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
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