this only has a variable on one side
-8 = -9 + b/3
add 9 to both sides
1 = b/3
multiply by 3 to both sides
3 = b
check:
-8 = -9 + 3/3
-8 = -9 +1
-8 =-8
Answer:
No solution
Explanation:
the problem 2x+y=2 can be written into slope intercept form by subtracting 2x from both sides. You should now have y= —2x + 2 following the formula y=mx+b. The formulas y= —2x - 1 and y= —2x + 2 now have the same slope but different y-intercepts so the answer CANT be infinitely many. In order to have a single (one) solution, you’d need a similar y- intercept. This being said, you would eliminate “one solution”
Keep in mind:
* Y intercept is b in the formula y=mx+b *
If you would like to simplify <span>5 + 2{x - 4[3x + 7(2 - x)]}, you can do this using the following steps:
</span>
5 + 2{x - 4[3x + 7(2 - x)]} = 5 + 2{x - 4[3x + 7 * 2 - 7x]} = 5 + 2{x - 4[-4x + 14]} = 5 + 2{x - 4 * (-4)x + (-4) * 14} = 5 + 2{x + 16x - 56} = <span>5 + 2x + 2 * 16x - 56 * 2 = 5 + 2x + 32x - 112 = 34x - 107
The correct result would be </span><span>34x - 107.</span>
Sonia represented by x. Sophia represented by x+15. x+x+15 = 63
2x + 15 =;63
2x = 48
x =;24. Sonia
x+15 = 39. Sophia
