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3 years ago

X + 7 - 4x = 19 - 2x

Mathematics

2 answers:

Inessa [10]3 years ago

5 0

Answer:

x=−12

Step-by-step explanation:

Simplifying

x + 7 + -4x = 19 + -2x

Reorder the terms:

7 + x + -4x = 19 + -2x

Combine like terms: x + -4x = -3x

7 + -3x = 19 + -2x

Solving

7 + -3x = 19 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.

7 + -3x + 2x = 19 + -2x + 2x

Combine like terms: -3x + 2x = -1x

7 + -1x = 19 + -2x + 2x

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

7 + -1x = 19 + 0

7 + -1x = 19

Add '-7' to each side of the equation.

7 + -7 + -1x = 19 + -7

Combine like terms: 7 + -7 = 0

0 + -1x = 19 + -7

-1x = 19 + -7

Combine like terms: 19 + -7 = 12

-1x = 12

Divide each side by '-1'.

x = -12

dybincka [34]3 years ago

3 0

Answer:

-12

Step-by-step explanation:

x+7-4x=19-2x

-3x+2x=19-7

-x=12

x=-12

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