Respuesta :

carolin30000

Answer:

x = 21

Step-by-step explanation:

Adding numbers:

3x+ 18 + 4x + 15 = 180

3x + 33 + 4x = 180

Combine Like terms:

3x + 33 + 4x = 180

7x + 33 = 180

Subtract:

7x + 33 - 33 = 180-33

7x = 147

Divide:

[tex] \frac{7x}{7} = \frac{147}{7} [/tex]

x = 21
You’ll combine like terms, then you have to isolate x on one side of the equal sign. Then solve
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