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Ksenya-84 [330]
3 years ago
15

4x + 11 = 6x - 15 find x

Mathematics
2 answers:
Elina [12.6K]3 years ago
7 0
4x + 15 = 6x + -11

Reorder the terms:
15 + 4x = 6x + -11

Reorder the terms:
15 + 4x = -11 + 6x

Solving
15 + 4x = -11 + 6x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6x' to each side of the equation.
15 + 4x + -6x = -11 + 6x + -6x

Combine like terms: 4x + -6x = -2x
15 + -2x = -11 + 6x + -6x

Combine like terms: 6x + -6x = 0
15 + -2x = -11 + 0
15 + -2x = -11

Add '-15' to each side of the equation.
15 + -15 + -2x = -11 + -15

Combine like terms: 15 + -15 = 0
0 + -2x = -11 + -15
-2x = -11 + -15

Combine like terms: -11 + -15 = -26
-2x = -26

Divide each side by '-2'.
x = 13

Simplifying
x = 13
juin [17]3 years ago
7 0
X= 13 because you have to add the x all to the left side than minus eleven from both sides which would equal -2x=-26 then divide by -2 which would equal x=13
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