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Simplifying (9b + -5) + -4(2b + 4) = -7 Reorder the terms: (-5 + 9b) + -4(2b + 4) = -7 Remove parenthesis around (-5 + 9b) -5 + 9b + -4(2b + 4) = -7 Reorder the terms: -5 + 9b + -4(4 + 2b) = -7 -5 + 9b + (4 * -4 + 2b * -4) = -7 -5 + 9b + (-16 + -8b) = -7 Reorder the terms: -5 + -16 + 9b + -8b = -7 Combine like terms: -5 + -16 = -21 -21 + 9b + -8b = -7 Combine like terms: 9b + -8b = 1b -21 + 1b = -7 Solving -21 + 1b = -7 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + 1b = -7 + 21 Combine like terms: -21 + 21 = 0 0 + 1b = -7 + 21 1b = -7 + 21 Combine like terms: -7 + 21 = 14 1b = 14 Divide each side by '1'. b = 14 Simplifying b = 14
| y=4x+120 | | -3(3p+4)-2(3-8p)=3(3+2p) | | 1/2log10x=1 | | 6m-19=3m+3(m-4) | | x+12.1=-6.1 | | X^1/2=10^1 | | 5.5q-1.2-5.8q=-1.3q-5.8 | | 9m-16m=28 | | -9.6-3.5= | | m+28=23 | | 56=7x-5(2x-7) | | -12x+4=-10x+40 | | 20x+7=365 | | 3.3q-4.5-2.6q=-0.3q-4.5 | | 7(-4/14) | | -5(2y-2)-y=-2(y-2) | | 26x+9=457 | | 0.5x-6=3.9x-23 | | 3(-2)+15=8(-2)+25 | | f(x)=3x^2-13x-10 | | 3(-2)+15=8(-2)-25 | | -1.1-4x=13.7 | | -[2x-(5x+2)]=2+(2x-4)+5 | | -5(t+1)-t-12=-6(t+5)+13 | | 4(2x)=22x | | 0=-4.9t^2-12t-30 | | 2[x-2(2x+4)+3]=2(x+1) | | 1/2y-4=-3 | | (2X-3)(-3X+5)= | | x/2,5=5,6 | | 6x-30+5=5x-35 | | 2000000/950000=3000000/x |