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Simplifying a + (20 + a) + (2a + -30) = 180 Remove parenthesis around (20 + a) a + 20 + a + (2a + -30) = 180 Reorder the terms: a + 20 + a + (-30 + 2a) = 180 Remove parenthesis around (-30 + 2a) a + 20 + a + -30 + 2a = 180 Reorder the terms: 20 + -30 + a + a + 2a = 180 Combine like terms: 20 + -30 = -10 -10 + a + a + 2a = 180 Combine like terms: a + a = 2a -10 + 2a + 2a = 180 Combine like terms: 2a + 2a = 4a -10 + 4a = 180 Solving -10 + 4a = 180 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + 4a = 180 + 10 Combine like terms: -10 + 10 = 0 0 + 4a = 180 + 10 4a = 180 + 10 Combine like terms: 180 + 10 = 190 4a = 190 Divide each side by '4'. a = 47.5 Simplifying a = 47.5
| 4x^2-12r-400=0 | | 3*(3x^2+y^2)*dx-2(xy)dy=0 | | a+(20+a)+(2a+30)=180 | | 90=x-10 | | 4–v/5=0 | | x/3-9=6 | | 6(x-7)+8=8x-12 | | 5/2x-3=3/x-5 | | -[4x+(9x+7)]=9-(7x+1) | | 3y(5x-6)= | | xy(5-6y)= | | w/-5=4=-2 | | 3y(2x+3x-6)= | | x+4=-3x+8 | | -4.8(x-4.25)=19.5 | | x+x-355+xsquared+80=2425 | | d/4=36 | | x/8=123456789 | | 2x+1=5+4x | | (2+8)-4+3= | | 3x(2y+3y-6)= | | x^2-16x=-72 | | 18+l=85 | | 3x^6+(1+2i)x+1-i=0 | | 2x-x^3=0 | | 3(2xy+3xy-6y)= | | x-2+105=180 | | 2y+4fory= | | 2/2y-5=-2 | | 9/3a=2 | | x+(x+190)+(x+106)=1331 | | U-12=33 |