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Simplifying -2(3 + -1d) = 7 + -4(1 + d) (3 * -2 + -1d * -2) = 7 + -4(1 + d) (-6 + 2d) = 7 + -4(1 + d) -6 + 2d = 7 + (1 * -4 + d * -4) -6 + 2d = 7 + (-4 + -4d) Combine like terms: 7 + -4 = 3 -6 + 2d = 3 + -4d Solving -6 + 2d = 3 + -4d Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '4d' to each side of the equation. -6 + 2d + 4d = 3 + -4d + 4d Combine like terms: 2d + 4d = 6d -6 + 6d = 3 + -4d + 4d Combine like terms: -4d + 4d = 0 -6 + 6d = 3 + 0 -6 + 6d = 3 Add '6' to each side of the equation. -6 + 6 + 6d = 3 + 6 Combine like terms: -6 + 6 = 0 0 + 6d = 3 + 6 6d = 3 + 6 Combine like terms: 3 + 6 = 9 6d = 9 Divide each side by '6'. d = 1.5 Simplifying d = 1.5
| 3/8+1/2x=2/x | | 33-(x-7)=9x-4 | | 16x^2-5= | | s^2+6sg-16g^2=0 | | y=3x/4+6 | | 4(1.75)+5x=12 | | -132x-12+9x=3(x-4) | | 4(-n+4)=-4(9-12n) | | 10(t-4)+5t=5(3t+4)-11 | | 5a-4=3a+28 | | -6(6x-10)=10(-4x+4) | | 2(x-10)+4=6x+2 | | 9y-6-4y+4=0 | | 1/4-t+3/6+t=0 | | -n-9(8n+1)=-9n-9 | | 30x^2-3x-6= | | 6+8q=7+7q | | 1-x=9 | | 6x^2+17x+15= | | 4x+4-6x=3 | | 104+87+69+y=(4-2)180 | | -8(1.25)-8y=-2 | | 101+89+75+y=(4-2)180 | | -8(1.25)-8(1.25)=-2 | | 106+83+77+y=(4-2)180 | | 2x/5x=160 | | f(x)=5x^2+9x+3 | | -8(1.25)-y=-2 | | a=b+6 | | 104+81+64+y=(4-2)180 | | b=6-a | | s+36=14 |