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Simplifying 2x + 9 + 2x + 2x + 5 + x + 7 = 77 Reorder the terms: 9 + 5 + 7 + 2x + 2x + 2x + x = 77 Combine like terms: 9 + 5 = 14 14 + 7 + 2x + 2x + 2x + x = 77 Combine like terms: 14 + 7 = 21 21 + 2x + 2x + 2x + x = 77 Combine like terms: 2x + 2x = 4x 21 + 4x + 2x + x = 77 Combine like terms: 4x + 2x = 6x 21 + 6x + x = 77 Combine like terms: 6x + x = 7x 21 + 7x = 77 Solving 21 + 7x = 77 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + 7x = 77 + -21 Combine like terms: 21 + -21 = 0 0 + 7x = 77 + -21 7x = 77 + -21 Combine like terms: 77 + -21 = 56 7x = 56 Divide each side by '7'. x = 8 Simplifying x = 8
| 8u=32+4u | | 4+2logx=3 | | 8=32+4u | | 108+29+y=180 | | log(X+4)=1 | | 1-4*k=exp(-6*k) | | ln(1-4*k)=-6*k | | y=34(1.204)x | | 5b^2+60b+160=0 | | (3/5)^3x-11=(5/3)^3-7x | | X+.06x=2000 | | y=47(1.191)x | | 8x-(7x+9)=7x-15 | | 5b^2+60+160=0 | | 10^-3/10^5= | | 2x-7=125 | | 3y-9=11y+15 | | -2x-6=20 | | x^3/x^12 | | 3y-9=11+15 | | 22(5-z)+13z=65 | | 4(2-7b)+17=-59 | | 148.7+98.9+y=180 | | 4x^3(7x)= | | 3n-5=-8(6+7n) | | 3x+3=4x-14 | | 38.2+95.7+y=180 | | 3(4x-4)=39 | | 26-6x=-52 | | 0.5+1.6c-4.1=-2 | | 2.4/x=2/9 | | 78+43+y=180 |