If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0.9c+0.5c=7
We move all terms to the left:
0.9c+0.5c-(7)=0
We add all the numbers together, and all the variables
1.4c-7=0
We move all terms containing c to the left, all other terms to the right
1.4c=7
c=7/1.4
c=5
| 7x-5+3=17+8x | | -1-4(y)=-9 | | 6k-5=2k-11= | | k+(–12)=42 | | 25=7x=4x | | 8(y-9)=32 | | 9c-9+3c=75 | | 8z2+8z+2=0 | | 5-18x=2x+230 | | 30=3(3n-3) | | -0.6(15x-20)=-0.2(15-5x) | | 0.7y=-21 | | 12(2x-6)=-6 | | 5/8x+13”=18 | | a^2+6a=72 | | 15x+5-20=180 | | 35=7.5x | | 6x-2+3=31 | | 2^2-7x+3=0 | | 9+2.5-13+(-1)=x | | 1x-5=5x+9 | | 7.5x=35 | | 3(2x+3)=2(3x) | | 9+2.5-13+(-x)=x | | (√1-3x)/x.x.x=0 | | 4+8(k-3)=2(2+5k)+2 | | 2x^2=9x+10 | | 12-2x=2x×x/2 | | 5x2-7=3x | | a=3+2a+2 | | a+3=2a=2 | | 4+8(k-3)=2 |