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Simplifying 4(x + -3) + (5) = 21 Reorder the terms: 4(-3 + x) + (5) = 21 (-3 * 4 + x * 4) + (5) = 21 (-12 + 4x) + (5) = 21 -12 + 4x + 5 = 21 Reorder the terms: -12 + 5 + 4x = 21 Combine like terms: -12 + 5 = -7 -7 + 4x = 21 Solving -7 + 4x = 21 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 4x = 21 + 7 Combine like terms: -7 + 7 = 0 0 + 4x = 21 + 7 4x = 21 + 7 Combine like terms: 21 + 7 = 28 4x = 28 Divide each side by '4'. x = 7 Simplifying x = 7
| (1-4i)-8-(4i)= | | log(4)56-log(4)8=log(4)x | | 14/5x=9/25 | | (-1+7i)(6-7i)= | | 5x+40=-2(x-5) | | 9/5x=9/25 | | 5(2x+1)-2(x-4)=2 | | 6x^2+8x=4(3x-20) | | (-8+4i)(-4+4i)= | | (t-4)(t+1)= | | 8x+2(1.5x)+2(2x)=680 | | 10k=4K-30 | | 6x^2+8=4(3x-20) | | 6l+24+8l-4=62 | | (-2i)(4i)+(8i)(2+3i)= | | 8x+2(1.5x)=680 | | 4x^2=4x+35 | | -4(2t+3)=-4 | | (-5i)(1-4i)+6(-3-i)= | | 10(2-8)=-167 | | -38+n=-55 | | (-6+3i)(2+i)= | | 3(2+x)=5(2-x)+6x | | (a-2/3)^2=48/25 | | (-8+4i)(6+2i)= | | 99y=99 | | 1-3exp(-1/2x)=0 | | 9x+3=-6x+18 | | (-2i)+6+(-5+6i)= | | z^4-z^3-(4z^2)+(16z)-12=0 | | x^2-100000000*x+1=0 | | f(x)=(x-(4i))(x-(4i))(x-2) |