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Simplifying 7b + -7 = 2(b + 4) Reorder the terms: -7 + 7b = 2(b + 4) Reorder the terms: -7 + 7b = 2(4 + b) -7 + 7b = (4 * 2 + b * 2) -7 + 7b = (8 + 2b) Solving -7 + 7b = 8 + 2b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-2b' to each side of the equation. -7 + 7b + -2b = 8 + 2b + -2b Combine like terms: 7b + -2b = 5b -7 + 5b = 8 + 2b + -2b Combine like terms: 2b + -2b = 0 -7 + 5b = 8 + 0 -7 + 5b = 8 Add '7' to each side of the equation. -7 + 7 + 5b = 8 + 7 Combine like terms: -7 + 7 = 0 0 + 5b = 8 + 7 5b = 8 + 7 Combine like terms: 8 + 7 = 15 5b = 15 Divide each side by '5'. b = 3 Simplifying b = 3
| 7ab+14ab^2+21a^2b= | | n=ux | | 9x-4=11+5x | | 10x-5(x+4)+9=-11+5x+21 | | 10p+9-11-p=2(2p+4)-3(2p-2) | | -3(n-1)-5n= | | 8a+31+9=0 | | 10.00-2(2.39)= | | 9x=8x-23 | | x(4x+2)= | | 14=4(x-3)-(x-8) | | -8y=10+5x | | -32= | | 4a-5=2a+5 | | 32=w-12 | | x=25y+12 | | 3x+70+2x+x-3y=360 | | -8+12c=-20 | | 4n^2+6n+2=870 | | 6x-3(2x+6)= | | 17s+s^2=-52 | | 4.3=x+1.8 | | 5[2-(2x-4)]=2(3-3x) | | 0.55x+.05(14-x)=.10(57) | | 0=4(2y-4y)+2y | | y=-5(2)+7 | | 5+c=-7 | | 3(2x+2)=6x+6 | | 4[2-(2x-4)]=2(8-3x) | | 2c^2-32c+128=0 | | 2w-3(4)=53 | | y+9=14 |