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Simplifying (x + -7) + 4y = 9 + (y + -21) Reorder the terms: (-7 + x) + 4y = 9 + (y + -21) Remove parenthesis around (-7 + x) -7 + x + 4y = 9 + (y + -21) Reorder the terms: -7 + x + 4y = 9 + (-21 + y) Remove parenthesis around (-21 + y) -7 + x + 4y = 9 + -21 + y Combine like terms: 9 + -21 = -12 -7 + x + 4y = -12 + y Solving -7 + x + 4y = -12 + y 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 + x + 7 + 4y = -12 + 7 + y Reorder the terms: -7 + 7 + x + 4y = -12 + 7 + y Combine like terms: -7 + 7 = 0 0 + x + 4y = -12 + 7 + y x + 4y = -12 + 7 + y Combine like terms: -12 + 7 = -5 x + 4y = -5 + y Add '-4y' to each side of the equation. x + 4y + -4y = -5 + y + -4y Combine like terms: 4y + -4y = 0 x + 0 = -5 + y + -4y x = -5 + y + -4y Combine like terms: y + -4y = -3y x = -5 + -3y Simplifying x = -5 + -3y
| -3x+8=-6 | | (4x+8)+(3x+3)= | | 16y+32n= | | 4x+3y=3600 | | 9(32/37)-9 | | -0.5m+7=-1 | | 28=1.4+a | | 13-18n^2=-1139 | | -.125(8x+15)=24 | | 2x^2+x^2=40000 | | y=0.33x-3 | | 3(4x+5y)+7(3y)= | | x^2+65X+156=0 | | (x+4)(x-5)=-7 | | 47.75+19+96=x | | 6(2x+6y)= | | 14-4+2m=5-15 | | x*3-x-16=29 | | (1/a)-(1-b)= | | -8z+9z=-3z+6+7z | | 1.2q-7.8q+1.2=-51.6 | | x^2+3y^2=4 | | 9x+8=180 | | 8x+5y=24.00 | | -0.2X+8.57=-0.4X+7.77 | | 10-(4y-9)=7-5y | | 4u-2=30 | | 3n-21=48 | | 3(f-2)=-24 | | -28=-8u+2(u+7) | | x*3-16=29 | | 4x-11+9b+8+2c-12=180 |