Question

10×(3х-7)=0,5 (х+8)×5=75 Х-8,3=1,4

Answer 1

1.х=9

2.х=7

3.х=9,7

миу гав

Answer 2

To solve the equations, let's go step by step:

1. 10×(3x-7) = 0.5(х+8)×5 First, let's simplify the equation on the right side:

0.5(x + 8) × 5 = 2.5(x + 8)

So the equation becomes:

10(3x - 7) = 2.5(x + 8)

Now distribute the multiplication on both sides:

30x - 70 = 2.5x + 20

Next, isolate the variable terms on one side and the constant terms on the other:

30x - 2.5x = 20 + 70

27.5x = 90

Finally, solve for x:

x = 90 / 27.5 ≈ 3.27

2. х - 8.3 = 1.4

To find the value of x in this equation, add 8.3 to both sides:

x = 1.4 + 8.3

x = 9.7

So, the solutions for the given equations are:

x ≈ 3.27 and x = 9.7