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Simplifying a + (a + 5) + (a + 5 * 2) = 75 Reorder the terms: a + (5 + a) + (a + 5 * 2) = 75 Remove parenthesis around (5 + a) a + 5 + a + (a + 5 * 2) = 75 Multiply 5 * 2 a + 5 + a + (a + 10) = 75 Reorder the terms: a + 5 + a + (10 + a) = 75 Remove parenthesis around (10 + a) a + 5 + a + 10 + a = 75 Reorder the terms: 5 + 10 + a + a + a = 75 Combine like terms: 5 + 10 = 15 15 + a + a + a = 75 Combine like terms: a + a = 2a 15 + 2a + a = 75 Combine like terms: 2a + a = 3a 15 + 3a = 75 Solving 15 + 3a = 75 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + 3a = 75 + -15 Combine like terms: 15 + -15 = 0 0 + 3a = 75 + -15 3a = 75 + -15 Combine like terms: 75 + -15 = 60 3a = 60 Divide each side by '3'. a = 20 Simplifying a = 20
| 1.5+r=3.25 | | X=5y^2+4 | | -0.05x-0.08=0.03-0.03-0.04(2x-1) | | 2(3x+3)=5(x-3) | | -5(4-3y)=9y+40 | | 7x+2=5+24 | | x=3a+4a | | 4w+16n=17 | | a+(a+5)+(b*2)=75 | | 5x+34=12-43 | | x-2(1-3x)=7 | | 6z+17=5z+6 | | 9(2n+4)=7(6n+8)+7 | | 8u=u+28 | | (a+3)(a-12)=0 | | X=-2y+40 | | 3x-2+6=2 | | 4(x+4)+3=-17 | | 2a+5+2b=75 | | -0.05x-0.08=0.03-0.04(2x-1) | | -4(7x+9)=-28x+36 | | 3x-4=10-(5-x) | | 4x-7+6=-17 | | 6x-15=x+4 | | 3+y=22 | | 2(3x+1)=-2(x-9)+4x | | 6(-3)-9(1.2)=15 | | 6(-3)-9(9.2)=15 | | 9(5-z)=-8z | | 7x^2+17x=0 | | y=0.5x+50 | | 5q=-72 |