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Simplifying (5x + 3) + (2x + 3) = 90 Reorder the terms: (3 + 5x) + (2x + 3) = 90 Remove parenthesis around (3 + 5x) 3 + 5x + (2x + 3) = 90 Reorder the terms: 3 + 5x + (3 + 2x) = 90 Remove parenthesis around (3 + 2x) 3 + 5x + 3 + 2x = 90 Reorder the terms: 3 + 3 + 5x + 2x = 90 Combine like terms: 3 + 3 = 6 6 + 5x + 2x = 90 Combine like terms: 5x + 2x = 7x 6 + 7x = 90 Solving 6 + 7x = 90 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + 7x = 90 + -6 Combine like terms: 6 + -6 = 0 0 + 7x = 90 + -6 7x = 90 + -6 Combine like terms: 90 + -6 = 84 7x = 84 Divide each side by '7'. x = 12 Simplifying x = 12
| -30+5x=x+18 | | 7.25y=-65.25 | | (2x+8)(3x-6)=-10 | | 70/130 | | 5x+-30=-18+x | | 3.5x=-59.5 | | 5.25z=-42 | | H=-16t^2+156t+105 | | y=4x^2-24x-6 | | 6.5w=-65 | | 9.5w=-114 | | 7y+5=6y-9 | | 4n-9=83 | | a(3a-4)+3a(2a-3)= | | T=P+Prt-S | | 20+15x=65 | | 23b-9=4b+66 | | 11=4(x-8)-1 | | 45=p(60) | | 9-4n=83 | | 9n-4=83 | | 3x+28=2x+8 | | 9x^2-90x+4y^2+32y=-163 | | y=3x^2+2x+8 | | 19x+9=10x+99 | | 5z-[2-5(6z-9)]= | | 45=p+60 | | 9y-9-7y+4=0 | | 57-5c/7=2c | | n-21.62=-2.62 | | 1/3*-8=-1/2*-9 | | 5.5n=104.5 |