in this equation x+30+2x-10+70 what does x equal

x does not equal to 1 since it is not an equation

triangles.PNG it looks like that

x+30+2x-10+70= 180

3x+30-10+70=180

3x=180-30-70+10

3x=180-90

3x=90

x=30

best me please

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