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(x-30)+(3x-10)=180 find x

User Shivams
by
8.2k points

1 Answer

1 vote

Answer:

x = 40

Explanation:

Equation:

Solution for x+30+(3x-10)=180 equation:

Simplifying

x + 30 + (3x + -10) = 180

Reorder the terms:

x + 30 + (-10 + 3x) = 180

Remove parenthesis around (-10 + 3x)

x + 30 + -10 + 3x = 180

Reorder the terms:

30 + -10 + x + 3x = 180

Combine like terms: 30 + -10 = 20

20 + x + 3x = 180

Combine like terms: x + 3x = 4x

20 + 4x = 180

Solving

20 + 4x = 180

Solving for variable 'x'.

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

Add '-20' to each side of the equation.

20 + -20 + 4x = 180 + -20

Combine like terms: 20 + -20 = 0

0 + 4x = 180 + -20

4x = 180 + -20

Combine like terms: 180 + -20 = 160

4x = 160

Divide each side by '4'.

x = 40

Simplifying

x = 40

User Hidalgo
by
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