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Simplifying (6x + 7) + (13x + 21) = 189 Reorder the terms: (7 + 6x) + (13x + 21) = 189 Remove parenthesis around (7 + 6x) 7 + 6x + (13x + 21) = 189 Reorder the terms: 7 + 6x + (21 + 13x) = 189 Remove parenthesis around (21 + 13x) 7 + 6x + 21 + 13x = 189 Reorder the terms: 7 + 21 + 6x + 13x = 189 Combine like terms: 7 + 21 = 28 28 + 6x + 13x = 189 Combine like terms: 6x + 13x = 19x 28 + 19x = 189 Solving 28 + 19x = 189 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-28' to each side of the equation. 28 + -28 + 19x = 189 + -28 Combine like terms: 28 + -28 = 0 0 + 19x = 189 + -28 19x = 189 + -28 Combine like terms: 189 + -28 = 161 19x = 161 Divide each side by '19'. x = 8.473684211 Simplifying x = 8.473684211
| 10(2m+6)+10=210 | | 3.50+2.00x=15.20 | | 15.7=2u-(-3.7) | | y=(5n+2m)(a-b)-(a+b)(5n-2m) | | .18x+3.8-0.07x+5=5 | | -k=a(x-h)-y | | x^2-9=112 | | -n+3=5 | | 1-7(6r-5)=120 | | 4(1-x)-4(1-10x)=2x-7x | | X^3-11=15 | | -2(x-1)=29+7x | | 9(-3r+1)=144 | | 180=x+10+x+10+x*2-30 | | X+(x+6)+y=126 | | -4(2y-6)-y=-4(y-3) | | a=0.85a+30 | | 60x^2-10x=0 | | 8-4=2+w | | 9X^2-3=1 | | 32=-4(8+n) | | 7b+6=-134 | | 10(5+2y)+5y= | | Y=2rx | | 2(x-7)=x-8 | | 8=3w-1 | | Y=-91.4(15)+1527 | | 16x+x^2=64 | | 5(x-5)=-140 | | C=2yr | | 2x+6x-140=0 | | 4x-10+7=130 |