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Simplifying 3 + -1(2x + 4) = 13 Reorder the terms: 3 + -1(4 + 2x) = 13 3 + (4 * -1 + 2x * -1) = 13 3 + (-4 + -2x) = 13 Combine like terms: 3 + -4 = -1 -1 + -2x = 13 Solving -1 + -2x = 13 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -2x = 13 + 1 Combine like terms: -1 + 1 = 0 0 + -2x = 13 + 1 -2x = 13 + 1 Combine like terms: 13 + 1 = 14 -2x = 14 Divide each side by '-2'. x = -7 Simplifying x = -7
| 7x+42=180 | | -log(x)=9.5 | | -(4)x-6=72 | | x-1-6x+6-12=9x+3 | | 0=3x^2-6x-12 | | 14-3(4x-6)= | | (x+1).3=4(x+2) | | 4(5z-1)-4(z+2)=7(z+1) | | x+1.3=4x+2 | | x-2/x=5 | | 2z+10=7z-30 | | 6k+5=-73 | | 2x-3+4=27 | | 12x(6+9)= | | (b-3)(b^3-4b^2+5b)= | | 9n+3=213 | | 2x(8+25)= | | 6(5z-1)-5(z+8)=14(z+1) | | Cos(2x)-cos(4x)=0 | | 6c-7=131 | | -1/3(x-1)=-2-(x-1/5) | | -3(t-9)-(t+4)=10 | | 6n-4=15l | | 8m-12=12 | | 7x+8y=11b | | 3c-3=-57 | | 5m+4x=0 | | 7+9(x-4)=7-6(x-2) | | 3t+24=8t-16 | | 3t+24=8-16 | | x/5=11/13 | | 3s-5=130 |