Answer:
1: x=23.313708 2: B x = -13.2 3: x = 152
All the problems examples at the bottom
Step-by-step explanation:
1: 12x=−3(4−x)
12x=3x−12
Step 1: Divide both sides by 12.
12x12=3x−1212
x=14x−1
Step 2: Solve Square Root.
x=14x−1
x=(14x−1)2(Square both sides)
x=116x2+−12x+1
x−(116x2+−12x+1)=116x2+−12x+1−(116x2+−12x+1)(Subtract 1/16x^2+(-1)/2x+1 from both sides)
−116x2+32x−1=0
x=−b±b2−4ac2a(Use quadratic formula with a=-0.0625, b=1.5, c=-1)
x=−(1.5)±(1.5)2−4(−0.0625)(−1)2(−0.0625)
x=−1.5±2−0.125
x=0.6862915010152388,23.31370849898476
2: 3+2.7x=9.6+3.2x
Step 1: Simplify both sides of the equation.
2.7x+3=3.2x+9.6
Step 2: Subtract 3.2x from both sides.
2.7x+3−3.2x=3.2x+9.6−3.2x
−0.5x+3=9.6
Step 3: Subtract 3 from both sides.
−0.5x+3−3=9.6−3
−0.5x=6.6
Step 4: Divide both sides by -0.5.
−0.5x−0.5=6.6−0.5
x=−13.2
3: 9+34x=78x−10
Step 1: Simplify both sides of the equation.
9+34x=78x−10
9+34x=78x+−10
34x+9=78x−10
Step 2: Subtract 7/8x from both sides.
34x+9−78x=78x−10−78x
−18x+9=−10
Step 3: Subtract 9 from both sides.
−18x+9−9=−10−9
−18x=−19
Step 4: Multiply both sides by 8/(-1).
(8−1)*(−18x)=(8−1)*(−19)
x=152
I really hope this helped you
