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Simplifying 39 + -18 = 3(x + -7) Combine like terms: 39 + -18 = 21 21 = 3(x + -7) Reorder the terms: 21 = 3(-7 + x) 21 = (-7 * 3 + x * 3) 21 = (-21 + 3x) Solving 21 = -21 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. 21 + -3x = -21 + 3x + -3x Combine like terms: 3x + -3x = 0 21 + -3x = -21 + 0 21 + -3x = -21 Add '-21' to each side of the equation. 21 + -21 + -3x = -21 + -21 Combine like terms: 21 + -21 = 0 0 + -3x = -21 + -21 -3x = -21 + -21 Combine like terms: -21 + -21 = -42 -3x = -42 Divide each side by '-3'. x = 14 Simplifying x = 14
| 5/7x-2=17 | | -8x-35+4x=25 | | x+2.6=7.15 | | 4(4x+9)+5=16x+41 | | 21=5w+6(w-2) | | w+4.38=8.45 | | 20x+x^2=400 | | a/130-35=290 | | log(5x-1)=1 | | u-8.93=4.2 | | 7x+15=3x+4x+3 | | 5(x-3)-12=30x-327 | | y13/y6= | | 35-15=(x-9) | | y13/y6 | | 2x-152+12x=72 | | 5-8x=3x+38 | | -4(7x-8)+5=-28+37 | | 11b/9=86 | | 2/3*-7/2*=3/4*-17 | | 7x+7+2x=5x-3 | | 4x-9.6=22 | | 7+x=12+x | | (1/x)-(1/3) | | (4x-6)(2x+4)= | | 10m-29=49 | | 103+58+a=180 | | 8(2y-5)-(7y+5)= | | -15p-5(5-5p)=6(p-2)-37 | | -8x+17=79 | | ln(((x^2)-4)/(1-4x))=0 | | (2-11)= |