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Simplifying 2(x + -4) + 1 = 13 Reorder the terms: 2(-4 + x) + 1 = 13 (-4 * 2 + x * 2) + 1 = 13 (-8 + 2x) + 1 = 13 Reorder the terms: -8 + 1 + 2x = 13 Combine like terms: -8 + 1 = -7 -7 + 2x = 13 Solving -7 + 2x = 13 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 + 2x = 13 + 7 Combine like terms: -7 + 7 = 0 0 + 2x = 13 + 7 2x = 13 + 7 Combine like terms: 13 + 7 = 20 2x = 20 Divide each side by '2'. x = 10 Simplifying x = 10
| 7+7x=105 | | 6x+3y=152.5 | | 18x+12+14x+10=38 | | 11-5x=-4 | | -8+x=10 | | (1/3)*7 | | -12-(-25)= | | x/-3=9 | | 3/4x=3/5 | | 5(3g+4)/4=35 | | 2(3p+4)+3(4p+1)= | | -58+(-32)= | | 13d+5=8d+50 | | A=3.142r^2 | | 7p=77 | | 4x^2-23x+49=6x+4 | | 6x-16=8x+28 | | x+x+2=29 | | 4.25n-50=0 | | 7/5-2i | | x+28+x+166=180 | | x+x+2+9=29 | | x+x+x+2=29 | | 0/3 | | 3i/-2+i | | (8/3)*(18-(3/8)) | | 2x+60=120 | | 10-d=-35-5d | | x+x+x+2+9=29 | | 3[x+4(6-x)]=4x+1 | | 3-2i/4-3i | | 7(x-7)=-27.3 |