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Simplifying (13b + -1) + -3(4b + 3) = -7 Reorder the terms: (-1 + 13b) + -3(4b + 3) = -7 Remove parenthesis around (-1 + 13b) -1 + 13b + -3(4b + 3) = -7 Reorder the terms: -1 + 13b + -3(3 + 4b) = -7 -1 + 13b + (3 * -3 + 4b * -3) = -7 -1 + 13b + (-9 + -12b) = -7 Reorder the terms: -1 + -9 + 13b + -12b = -7 Combine like terms: -1 + -9 = -10 -10 + 13b + -12b = -7 Combine like terms: 13b + -12b = 1b -10 + 1b = -7 Solving -10 + 1b = -7 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + 1b = -7 + 10 Combine like terms: -10 + 10 = 0 0 + 1b = -7 + 10 1b = -7 + 10 Combine like terms: -7 + 10 = 3 1b = 3 Divide each side by '1'. b = 3 Simplifying b = 3
| 5.5k+5-4.5k=10 | | .75(8a+20)=6a+10 | | 15=5/6c-8 | | 3u+5(1-u)=u+8 | | 11y-6=-28 | | 3/2x-4/3 | | 5(2x-1)-3(4x-7)=0 | | 21+x=5(-5v-1) | | 19=8x-9 | | (10x+46)+(5x+71)=z | | 17=n-(-8) | | (10x+46)+(5x+71)=x | | 20-12-12v=-15v-13 | | 12(v+3)-4v=4(2v+1)-13 | | 1/4X^2+3/4-5X-2/3X^2+1/5X-2 | | 3r+12+2+4r-2=270 | | 11x+48=-18 | | y=1(4-1) | | 4(5x+5)=260 | | -g-3g+17=-17-6g | | U*6.4=6.4 | | 1/4X^2+3/4-5X-2/3X^2+1/5-2 | | 3r+12+2+4r-2=360 | | 2.5(2)-10.0=-0.5 | | -15=r+1 | | 3r+12+2+4r-2=90 | | 1/3y+6-2/4 | | 2x-20=14x-80 | | (10x+46)=(5x+71) | | 6x+2=-28+3x | | 45+2k=180 | | 3r+12+2+4r-2=180 |