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Simplifying 3x + 15 + 2x = 90 Reorder the terms: 15 + 3x + 2x = 90 Combine like terms: 3x + 2x = 5x 15 + 5x = 90 Solving 15 + 5x = 90 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + 5x = 90 + -15 Combine like terms: 15 + -15 = 0 0 + 5x = 90 + -15 5x = 90 + -15 Combine like terms: 90 + -15 = 75 5x = 75 Divide each side by '5'. x = 15 Simplifying x = 15
| 4y-7y=8+1y | | 8+x-3=17 | | 8+(10x+141)=12x | | n+5n=30n | | m^2+9m+20=0 | | 20*.5=15*.25 | | 3v-2w=12 | | 9+3n-8=7n+10-3n | | -5x-42-x=42 | | 4j+6=11j | | 2s^2-6s+7=0 | | 15*25=20*5 | | a-(b-c)= | | -2d+15=4d-15 | | -8n+10=-6n-10 | | [3x+2]=7 | | 4t^2-(t+4)+42=0 | | (9x-55)=(3x+35) | | 1.2(8k+2)=4 | | 7(d-4)+12= | | 3+5x-1=9x+9-3x | | 3x+16=9x | | 9b=28 | | 1-4x+11=5 | | 7y=33+4y | | 78=15-5y | | 4w+4w= | | 2x+40=120 | | 8m-9n-6m+2n= | | 78=15x+5y | | -4r+3-6r=15-6r | | F=1.8K-491.67+32 |