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Simplifying b + 15(b + 2) + 15 + (2b + -9) = 90 Reorder the terms: b + 15(2 + b) + 15 + (2b + -9) = 90 b + (2 * 15 + b * 15) + 15 + (2b + -9) = 90 b + (30 + 15b) + 15 + (2b + -9) = 90 Reorder the terms: b + 30 + 15b + 15 + (-9 + 2b) = 90 Remove parenthesis around (-9 + 2b) b + 30 + 15b + 15 + -9 + 2b = 90 Reorder the terms: 30 + 15 + -9 + b + 15b + 2b = 90 Combine like terms: 30 + 15 = 45 45 + -9 + b + 15b + 2b = 90 Combine like terms: 45 + -9 = 36 36 + b + 15b + 2b = 90 Combine like terms: b + 15b = 16b 36 + 16b + 2b = 90 Combine like terms: 16b + 2b = 18b 36 + 18b = 90 Solving 36 + 18b = 90 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-36' to each side of the equation. 36 + -36 + 18b = 90 + -36 Combine like terms: 36 + -36 = 0 0 + 18b = 90 + -36 18b = 90 + -36 Combine like terms: 90 + -36 = 54 18b = 54 Divide each side by '18'. b = 3 Simplifying b = 3
| 3x+18=9x | | 33-3x=-93+6x | | 6+x/2= | | 2x^2-20x+36=0 | | 3+(0.8)x=0 | | 2y+4b=4x | | X-6=-6.5 | | 600+.10b=1200+.02b | | -6x-4(x-8)=-78 | | 27-26=82 | | 10x+4=6(x-2)+4x+16 | | 3-7x=3x+-7 | | 2x+.3=-5x+43.9 | | a(x+c)=2ad+cfora | | x^5-2x^2-3x+6=0 | | 2x+3=-5x+43.9 | | 2+x/2= | | 51+y-25=5y+3-21 | | B+15(b-2)+15+(2b-9)=90 | | 1.48=4.28-.4x | | 5x+4y=112 | | 4x-8+x=5x+-8 | | 4x-8+x=5x+8 | | 4y+11=8y+43 | | 18=6x+6(-3x-7) | | 4x-8+x=5x+-5 | | 4x-8+x=5x+5 | | -4-5n=-(2n+4) | | 49+9(9t-6)=-5 | | -3x-6=3x+6 | | 3y=y+40 | | -5(4+7n)=230 |