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Simplifying 7 + (7 + 2a) + 3a + (5a + -4) = 200 Remove parenthesis around (7 + 2a) 7 + 7 + 2a + 3a + (5a + -4) = 200 Reorder the terms: 7 + 7 + 2a + 3a + (-4 + 5a) = 200 Remove parenthesis around (-4 + 5a) 7 + 7 + 2a + 3a + -4 + 5a = 200 Reorder the terms: 7 + 7 + -4 + 2a + 3a + 5a = 200 Combine like terms: 7 + 7 = 14 14 + -4 + 2a + 3a + 5a = 200 Combine like terms: 14 + -4 = 10 10 + 2a + 3a + 5a = 200 Combine like terms: 2a + 3a = 5a 10 + 5a + 5a = 200 Combine like terms: 5a + 5a = 10a 10 + 10a = 200 Solving 10 + 10a = 200 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 + 10a = 200 + -10 Combine like terms: 10 + -10 = 0 0 + 10a = 200 + -10 10a = 200 + -10 Combine like terms: 200 + -10 = 190 10a = 190 Divide each side by '10'. a = 19 Simplifying a = 19
| H/9-19=-81 | | 5x^2-20x+18=0 | | -2(4t-5)+6t=7t-3 | | 10=-3v+1 | | -2(4t-8)+6t=7t-3 | | 1/3*36*2 | | 2-sinx=3sinx | | 4x^3+10x-14=0 | | 216=1/3*36h | | 14x^3+10x-14=0 | | B+7=-9 | | 4cot(X/7) | | |5x/95| | | |5x/95 | | 2*6+3*-2=12 | | -3(a-3)+6=4(a+2) | | -3(m-5)=15 | | a(n)=1+5(n-1) | | 100-2x=x+1 | | 13-c=29 | | 18xy2/45x2y | | Y=-16t^2+8t+120 | | -3.6/-2 | | 3(m-9)=30 | | Ax+2b=cforx | | 69+3B=48 | | 2x+3*2=12 | | 13+6x=3(6x+10)+x | | 12.75/1.5= | | 6w/144 | | 3a+9+5a= | | 12/.16 |